Our seminars take place in our lab, room MC6334, in the Mathematics & Computer Building (MC), this term normally Wednesdays at 2pm. If you are an upcoming student speaker and would like some advice on how to prepare a presentation, see see the section on communication skills in my handbook for new grad students here.
- Nov. 29 (Wed), 2pm, Aidan Chatwin-Davies (CalTech)
- Nov. 15 (Wed), 2pm, AK
- Nov. 9 (Thu), 1:30-4:30pm, Dr. Juergen Gerhard (Maplesoft)
Introduction to symbolic computation with Maple
- Nov. 1 (Wed), 2pm, Lucas Hackl (Penn State)
Linear growth of the entanglement entropy and the Kolmogorov-Sinai rate
- Oct. 25 (Wed), 2pm, Dr. Angelika Fertig (PI)
Quantum Tunneling with a Lorentzian Path Integral
- Oct. 19 (Thu), 2pm, Nitica Sakharwade
Bidirectional Teleportation and Dense Coding in the Butterfly network
- Oct. 11 (Wed), 2pm, Nadine Stritzelberger
Gravitational closure of matter field equations
- Oct. 10 (Tue), 1pm, Koji Yamaguchi (Tohoku University, Sendai, Japan)
Entanglement Beyond Page Curves in Black-hole Evaporation Qubit Model
- Oct. 4 (Wed), 10:00am, Dr. Katja Ried, (QIC, University of Innsbruck, Austria)
Fish, robots and free will: what we can learn by building agents that learn for themselves
- Oct. 2 (Mon), 2pm, Georgios Styliaris (USC, Los Angeles)
Coherence generating power of quantum dephasing processes
- Sep. 21 (Thu), 1:30pm, MC6486, AK, Nicholas Pun and Rob Martin talk in the local number theory seminar
Amplified foreshadowing of jumping champions
- Sep. 20 (Wed), 4pm (Sky Room, PI), AK and Eduardo Martin-Martinez give a talk to PI's PSI students.
Current topics of research
- Sep. 14 (Thu), 2pm, Guillaume Verdon-Akzam
Qubits from It: Quantum Field Sampling, Compression, and Teleportation
- Sep. 7 (Thu), 2pm in PI's Sky Room. AK talks in PI's Cosmology group
Covariant information-theoretic natural ultraviolet cutoff and the CMB
- Sep. 1 (Thu), 12pm. (PI Bistro, 2nd floor) AK talks to PI's new PSI students
Overview of current topics of research
Spring / Summer 2017
- Aug. 30 (Wed), 10am, in MC5479 Prof. Luis Garay (Universidad Complutense de Madrid)
Gravitational-wave echoes from macroscopic quantum gravity effects
- Aug. 18 (Fri), 10:30am, Dr. Chris Ferrie (U. of Tech. Sydney)
The Problematization of Randomized Benchmarking
- July 21 (Fri), 10am, MC6460, Mikhail Panine
- July 12 (Wed), 2pm, Laurel Stephenson-Haskins (UC Santa Cruz)
Hybrid Inflation and the Spectral Index
- June 27 (Tue), 2pm, Prof. Adrian Lupascu (IQC)
Introduction to implementations of quantum annealing, and current work
- June 23 (Fri), 2pm, Dr. Fabio Costa (Univ. of Queensland, Australia)
A no-go theorem for superpositions of causal order
- June 22 (Thu), 2pm, Prof. Ghazal Geshnizjani (UW,PI)
Getting Super-Excited with Modified Dispersion Relations
- June 15 (Thu), 11am, Flaminia Giacomini (Univ. of Vienna, IQOQI))
Quantum systems as reference frames
- June 13 (Tue), 12pm, Prof. Vijay Ganesh (UW-ECE)
SMT Solvers for Software Engineering and Security
- June 5 (Mon), 2pm, Aidan Chatwin-Davies (CalTech)
A Holographic No-Hair Theorem from the Generalized Second Law for Cosmology
- May 31 (Wed), 2:00pm, Dr. Daniel Guariento (PI)
Hamiltonian analysis of the cuscuton
- April 26 (Wed), 3:30pm, Daniel Grimmer
Open dynamics under rapid repeated interaction
- Mar. 22 (Wed), 11am, QNC0101, Prof. Mohammad Ansari (Delft University of Technology, the Netherlands)
Entropy measurement in quantum systems
- Mar. 21 (Tue), 1pm, Maria Papageorgiou
The 'weight' of entanglement, and the validity limits of semiclassical gravity
- Mar. 14 (Tue), 2pm, Guillaume Verdon-Akzam
Maximal entanglement breaking via measurement of quantum fields
- Mar. 7 (Tue), 12:30pm, Nayeli Azucena Rodriguez-Briones
Correlation-Enhanced Algorithmic Cooling
- Feb. 28 (Tue), 2:30pm, Prof. Jose A. Zapata (UNAM, Mexico and UW)
On holography and gauge degrees of freedom
- Feb. 22 (Wed), 11am, room MC6486, Prof. Markus Aspelmeyer (Univ. of Vienna, Austria)
Entanglement through Gravity: crazy but how crazy?
- Feb. 15 (Wed), 2:30pm, Prof. Yidun Wan (Fudan University, Shanghai)
Ground State Degeneracies of Topological Orders on Open Surfaces via Anyon Condensation
- Feb. 14 (Tue), 2pm, Ding Jia
Natural entanglement cutoff from indefinite causal structure
- Jan. 31 (Tue), 2:30pm, Prof. Lorenzo Fatibene (Univ. of Turino, Italy)
Ehlers-Pirani-Schild axiomatics for gravity and extended theories of gravitation
- Jan. 16 (Mon), 10am, in MC6460, Prof. Niayesh Afshordi (UW, PI)
Echoes from the Abyss: Evidence for Planck-scale structure at black hole horizons
- Jan. 16 (Mon), 1pm, MC5501, Prof. Jorma Louko (Univ. of Nottingham, U.K.)
Smooth and sharp creation of a pointlike source in quantum field theory
- Jan. 13, (Fri), 2pm, Jason Pye
Quantum Hamiltonian Complexity, Area Laws and Holography
- Dec. 15, (Thu), 2pm, in MC6460, Guillaume Verdon-Akzam
- Dec. 13, (Tue), 2pm, Nayeli Azucena Rodriguez Briones
Quantum Energy Teleportation for Algorithmic Cooling
- Dec.8, (Thu), 11am, Paul Tiede
Bow ties in the sky
- Dec. 7, (Wed.), 2pm, Hau-tieng Wu (Univ. of Toronto)
When time series analysis meets manifold learning
- Nov. 24, (Thu), 10am, Ding Jia
Theories with indefinite causal structure
- Nov. 17, (Thu), 10am, Kiran Khosla (Univ. of Queensland and UW)
Testing classical channel gravity with quantum clocks
- Nov. 15, (Tue), 12pm, Jason Pye
Information-theoretic ultraviolet cutoffs for quantum field theory
- Nov. 10, (Thu), 10am, Dr. Dennis Raetzel (Univ. of Vienna)
Gravitational Properties of Light
- Oct. 27 (Thu), 10am, Sasha Agne (IQC)
Observation of genuine three-photon interference
- Oct. 26 (Wed), 2:00pm, Dr. Eric Brown (Institute of Photonic Sciences (ICFO), Barcelona, Spain)
Gaussian-passivity: practical limitations on quantum energy extraction
- Oct. 14 (Fri.), Prof. Alexander Gutfraind (U. of Illinois, Chicago and Uptake Technologies)
- 2-3pm, in QNC1501
Mathematical Emergencies: Dynamic and Network-based Methods in Infectious Disease Epidemiology
- 3:30-4:30pm in QNC1501 (Colloquium)
Math on the frontlines : applications of complex systems methods in
- 2-3pm, in QNC1501
- Oct. 11 (Tue), 2pm, Michael Florian Wondrak (Frankfurt Institute for Advanced Studies)
- Unparticle Effects on Black Holes and the Hydrogen Atom
- Oct. 6 (Thu), 10am, Markus Mueller (PI, Western University)
An operational approach to spacetime symmetries: Lorentz transformations from quantum communication
- Sept. 22 (Thu), 2pm, Emma MacKay
The effective size of a superconducting qubit
- August 12 (Fri.), 11am, Prof. Ted Jacobson (Univ. of Maryland)
Is the vacuum maximally entangled?
- August 11, 10am, MC6486, Jason Pye
- August 10 (Wed.), 11am, Prof. Karen Yeats (Simon Fraser / UW)
Chord diagrams and Dyson Schwinger equations
- August 8 (Mon), 9am, Ding Jia, Taylor Zhang, Nicholas Pun
Summer research project presentations: Integration by differentiation, Time-varying bandwidth filtering for the SKA telescope project, Shannon analysis of jumping champions of prime numbers.
- August 4 (Thu), 10am, David Layden
- August 3 (Wed.), 2pm, Guillaume Verdon-Akzam
Holographic quantum error correcting codes
- July 28 (Thu), 1pm, Robert Jonsson
- July 6 (Wed.), 11am, room QNC 1501, Dr. Valentina Baccetti (Macquarrie University)
Clausius entropy for bifurcate null surfaces and its application to the thermodynamic derivation of the Einstein equations
- June 29 (Wed.), 3pm, Aidan Chatwin-Davies (CalTech)
Demystifying Wheeler-de Witt
- June 21-24
We are hosting the RQI-N2016 conference at the IQC!
- June 20th (Mon.), 11am, Jason Pye and Aida Ahmadzadegan
Test run of conference talks
- June 15th (Wed.), 11am, Prof. Eduardo Martin-Martinez
Low energy signatures of Causal sets and other Lorentz invariant Non-Local Theories
- June 8th (Wed.), 3:30pm, Alfred Shapere (University of Kentucky)
Quantizations of time crystals
- June 3rd (Friday), 2pm, Dr. Stefan Nimmrichter (Singapore National University)
Macroscopicity of Quantum Experiments
- June 2nd (Thursday), PSI Master's defenses at PI
11am: Maria Papegeorgiou, On the implementation of a covariant ultraviolet cutoff
2pm: Leilee Chojnacki, A new approach to superoscillations
- May 11 (Wednesday), 10am, Guillaume Verdon-Akzam
Black Hole Complementarity: Beyond Semiclassicality
- May 5 (Thursday), 11am in room 400 at PI, Dr. William Donnelly (UCSB)
Entanglement of Spacetime
- April 21st (Thursday), 10:30am, room QNC1501, AK talks at the Indian Canadian Research Colloquium
How to integrate by differentiating
- April 20th, 10:30am, Prof. Sukhdev Roy (Dayalbagh Educational Institute, Agra, India)
Optical Information processing with natural photoreceptor proteins
- April 13th, 11am, Maria Papageorgiou (UW,PI)
On energy conditions and entanglement inequalities
- April 6th, 11am, Yasaman Yazdi (UW,PI)
Entanglement entropy in causal set theory
- March 23rd, 11am, Daniel Grimmer
Emergence of open dynamics from general repeated interactions, and its applications
- March 16:
2:30pm, Prof. José A. Zapata (UNAM, Mexico)
10:00am, Jon Herman, (Pure Math, UW)
On Noether's theorem and the Legendre transform
- March 10, (Thursday), 1:30pm, Jason Pye, David Layden, Guillaume Verdon-Akzam
Test runs of March Meeting talks
- March 9, 12 noon, Meenu Kumari (UW / WLU)
In search of quantum analogs of classical chaos and synchronization
- March 2, 10am, András Molnár (Max Planck Institute for Quantum Optics, Garching, Germany)
Rapid adiabatic generation of Gibbs states
- February 24, 4:30pm, Nayeli Azucena Rodriguez Briones (IQC)
Heat-Bath algorithmic cooling with correlated qubit-environment interactions
- February 17, 2pm, Naoki Watamura (UW / Nagoya University, Japan)
Introduction to entanglement entropy of gauge fields and its boundary condition
February 17, 11am, Eric Hanson (McGill)
Landauer's principle in repeated interaction systems (slides)
- February 10, 12:30pm, Yongmin Cho (Chinese Academy of Sciences, Lanzhou)
Abelian Decomposition of Einstein’s Theory
- February 3, 11am, Guillaume Verdon-Akzam
Asymptotically limitless quantum energy teleportation.
- January 20, 11am, Alvaro Alhambra (University College London)
On quantum thermodynamics
- January 13 (Wed.), 11am, Prof. Jorma Louko (University of Nottingham)
Low energy Lorentz violation for high-energy mode field dispersion
- December 15, 10:30am (PHYS352), Cohl Furey
- November 18, 11am, Dr. Electra Eleftheriadou (IQC)
How to amplify perfectly (just not every time)
- November 16, 4pm, David Layden and Nayeli Rodriguez (IQC)
Indirect quantum control. Strong local passivity.
- November 12, 5pm, AK talks to PM-AM-C&O Club
How to integrate by differentiating and other wild new math inspired by physics and engineering.
- November 4, 11am, Dr. Eric Brown (Barcelona)
What does it mean for half of an empty box to be full?
- October 27, 2pm, Simon Foreman (Stanford)
The effective field theory of cosmological large scale structure
- October 14, 11am, Natacha Altamirano (UW,PI)
Continuous quantum measurements and feedback
- October 7 (Wednesday), 11am, Dr. Josh Combes (UW, PI)
Times They Are A-Changin’: characterizing time dependent sources and gates
- September 23 (Wednesday), 11am, Dr. Chris Ferrie (University of Sydney, Australia)
Self-guided quantum systems
- September 16 (Wednesday) 11am, Katja Ried (UW, PI)
On causality in quantum theories
- Sept. 12 (Saturday) 5:00pm, Mikhail Panine (at Perimeter Institute)
Numerical spectral geometry
Workshop Noncommutative Geometry and Physics
- Sept. 12 (Saturday) 4:15pm, AK (at Perimeter Institute)
Infinitesimal spectral geometry
Workshop Noncommutative Geometry and Physics
- Sept. 1 (Tuesday), 2pm, Aidan Chatwin-Davies (CalTech)
How to retrieve a qubit from a black hole
- August 25th, (Tuesday), 2pm, Pablo Rodriguez-Lopez (CNRS, Paris XI)
Stochastical approach to the Casimir effect
- August 12th (Wednesday), 2pm, Prof. Benni Reznik (Tel Aviv University)
Superoscillations underlying remote state preparation for relativistic fields
- August 12th (Wednesday), 10am, Prof. Masahiro Hotta (Tohoku University, Sendai, Japan)
The fall of black hole firewalls
- August 11 (Tuesday), 2pm, Dr. William Donnelly (UCSB)
Entanglement entropy and the electromagnetic field
- July 14 (Tuesday), 4pm, Prof. Gaetano Fiore (Universita' di Napoli and INFN)
Laser-driven acceleration mechanisms of plasma electrons, and the slingshot effect
- June 24 (Wednesday), 10:30am, Prof. Valerio Scarani (National University of Singapore)
- June 23 (Tuesday), 4pm, Lucas Hackl (Penn State)
Entangled spin network states in Loop Quantum Gravity
- June 18 (Thursday), 12pm, Dr. Mercedes Martin-Benito (Radboud Universiteit Nijmegen, Netherlands)
Gauge-invariant formulation and hybrid quantization of flat FRW cosmologies with linear perturbations
- June 11 (Space Room, PI), 2:30pm, AK
How to (path) integrate by differentiating
- June 9, 2pm, Dr. Bruno Hartmann (Humboldt University Berlin)
Operationalization of Basic Observables in Classical and Relativistic Dynamics
- May 19, 4:30pm, Prof. Luis Garay (Universidad Complutense de Madrid)
Do stars die too long?
- May 19, (MC6496), 2pm, Mikhail Panine
- May 13, (Time room, PI), 11am, Achim speaks at Perimeter Institute conference Information-Theoretic Foundations for Physics
What if Nature is Bandlimited by a Planck-scale cutoff?
- May 12, 2pm, Prof. Silke Weinfurtner (University of Nottingham)
Hydrodynamic simulation of black holes
- May 7, 11am, Guillaume Verdon-Akzam
High-dimensional Quantum Key Distribution using Orbital Angular Momenta of Photons
- May 5, 2pm, Robert Jonsson
On Quantum Speed Limits
- Apr. 27, 11am, Prof. Sabine Hossenfelder (Nordita, Stockholm)
- Apr. 22, 11am, Mikhail Panine
On heat kernel methods
- Apr. 15, 11am, Prof. Chris Bauch
Mathematical modelling of coupled disease-behaviour dynamics, with application to childhood vaccine scares
- Apr. 1, 11am, Emma McKay (IQC)
Random State production in quantum chaos
- Mar. 26 (Thursday), 10am, Nayeli Rodriguez (IQC)
Achievable polarization for Heat-Bath Algorithmic Cooling
- Mar. 18, 10:30am, Prof. Eduardo Martin-Martinez
The Anti-Unruh effect, and weakness of firewalls
- Mar. 11, 11am, Prof. Roger Melko (UW, PI)
Quantum Monte Carlo and Entanglement Entropy
- Mar. 4, 11am, Yasaman Yazdi, (UW,PI)
Firewall Phenomenology with Astrophysical Neutrinos
- Feb. 18, 2pm, Prof. Masahiro Hotta (Tohoku University, Sendai, Japan)
On Quantum Energy Teleportation
- Feb. 18, 11am, Mehdi Saravani (UW, PI)
Dark matter from spacetime nonlocality
- Feb. 18, 10:30am, David Layden
Test run of talk at APS meeting.
- Feb. 11, 11am, Guillaume Verdon-Akzam
Quantum energy teleportation in squeezed vacua
- Feb. 4, 11am, Guillaume Verdon-Akzam
Quantum energy teleportation and the controlled Hawking process
- Jan. 28, 11am, Robert Jonsson
Matrix product states
- Jan. 21, 11am, Guillaume Verdon-Akzam
On the recovery of quantum information from black holes
- Jan. 15, 11am, Prof. Jorma Louko (Univ. of Nottingham)
Superconducting circuit boundary conditions beyond the Dynamical Casimir Effect
- Jan. 14, 11am, Dr. Casey Myers (Univ. of Queensland, Australia)
Vibrationally Enhanced Quantum Transport
- Jan. 7, 11am, Prof. Jorma Louko (Univ. of Nottingham, U.K.)
How long does it take Unruh de Witt detectors to thermalize?
- Achim in Australia and New Zealand for lectures, talks and conferences (at UWA, U. Sydney, UQ, RQI-S2014 and CosPa2014).
- September 24, 1:30 pm: Marius Oltean
Cosmological perturbations in antigravity
- September 11, 2:00 pm: Oleg Kabernik
Quantum reference frames and the Poincaré symmetry
- September 3, 2:30 pm: Alejandro Pozas (Perimeter Scholars International (PSI) of the Perimeter Institute for Theoretical Physics (PI))
Hot electrons as the source of photocurrent in graphene
- August 29, 11:00 am: Prof. Shih-Yuin Lin (Chang Hua University, Chang Hua and Academia Sinica, Taipei)
Unruh effect under non-equilibrium conditions
- August 27, 2:30 pm: Aidan Chatwin-Davies (California Institute of Technology),
AdS/MERA and beyond
- August 25, 2:30 pm: Daniel Huemmer (Universities of Waterloo and Heidelberg),
On Unruh-DeWitt detectors
- August 14, 2:00 pm: Eduardo Martin-Martinez,
Review of quantum energy teleportation
- August 13, 2:30 pm: Jeremy Sakstein (Cambridge University, U.K.)
Testing theories of modified gravity using astrophysics
- August 6, 2:30 pm: Nathan Killoran (University of Ulm, Germany),
Extracting entanglement from identical particles
- July 11, 1:30 pm: William Donnelly and Jason Pye,
On the continuous wavelet transform
- July 9, 2:00 pm: Shane Farnsworth, (University of Waterloo, PI),
Predictions of non-commutative geometry: the sigma field
- July 2, 2:30 pm: Daniel Guariento (Universidade de São Paulo and PI),
Evolution of cosmological black holes: exact solutions, accretion and scalar fields
- July 2, 11:00 am: William Donnelly,
On methods for calculating entanglement entropy
- June 24, 10:00 am: Robert Martin (University of Cape Town),
On the dilation of quantum channels
- June 4, 2:30 pm: Cohl Furey (University of Waterloo, PI),
Charge quantization from a number operator
- May 23, 2:30 pm: Hans Westman (Instituto de Física Fundamental, (CSIC), Madrid, Spain),
Signature change, dark energy, and Cartan gravity with dynamical symmetry breaking
- May 7, 10:00 am: Prof. Fedele Lizzi (University of Napoli, Italy),
Quantum spacetime, the view from below
- April 30: Nick Menicucci (University of Sydney),
Continuous-variable cluster states: powerful extensible cluster states
- April 24, 10:00 am: Angus Prain (Bishop's University, Sherbrooke, Quebec),
Building a black hole in the bathroom or otherwise
- April 23: Shane Farnsworth (University of Waterloo, PI),
Applications of non-associative geometry
- April 16: Aharon Brodutch (Institute for Quantum Computing (IQC)),
Weak measurements and the two-state vector formalism
- April 2: Achim Kempf,
New Dirac delta function methods for perturbative expansions in quantum field theory and beyond
- March 26: Prof. Barry Sanders (University of Calgary),
Evolutionary algorithms for hard quantum control
- March 19, 2:30 pm: Guillaume Verdon-Akzam (McGill University),
On the Unruh vacuum
- March 19, 11:00 am: Prof. William Kinney (State University of New York (SUNY) Buffalo),
Review of the BICEP2 results and their implications for inflationary cosmology and quantum gravity
- March 14, 12:45 pm: Prof. Enrique Solano (University of the Basque Country, Spain),
New perspectives in quantum simulations
- March 12: Marvellous Onuma-Kalu (University of Waterloo, PI),
Mode invisibility and single photon detection
- March 5: Siavash Aslanbeigi (University of Waterloo, PI),
The causal set - continuum correspondence
- February 26, 2:30 pm: Hilary Carteret
Computationally accessible bounds for the negativity using replicas
- February 19, 2:00 pm: Philipp Hoehn (PI),
Quantization of systems with temporally varying discretization
- February 12, 2:30 pm: Siavash Aslanbeigi (University of Waterloo, PI),
Causal set d'Alembertians: continuum limit, spectrum, stability, and a new regulator for QFT
- February 12, 10:30 am: Josh Combes (University of New Mexico),
Limitations of quantum amplifiers
- February 5: Cohl Furey (University of Waterloo, PI),
Generations: three prints, in colour
- January 29, 2:30 pm: Nosiphiwo Zwane (University of Waterloo, PI),
Propagation of particles in the discrete spacetime of causal set theory
- January 22, 2:30 pm: Bianca Dittrich (PI),
Diffeomorphism symmetry in the discrete and perfect discretizations
- January 15: Prof. Jorma Louko (University of Nottingham),
Particle detectors near and beyond black hole horizons
- January 8: Nick Menicucci (University of Sydney, Australia),
Acceleration-assisted entanglement harvesting and rangefinding
- December 18, 10:30 am: Mikhail Panine
Jet spaces and nonlinear PDEs
- December 13, 10:30 am: Juan Jose Garcia-Ripoll,
Detecting majorana fermions and topological order in optical lattices
- December 12, 2:30 pm, Time Room at PI: Achim Kempf,
Curvature in terms of entanglement
- December 12, 12:00 pm: Eduardo Martin-Martinez,
Topics in quantum information II
- December 11, 10:30 am: Jason Pye,
From generalized uncertainty and commutation relations to sampling in QFT
- December 4, 1:30 pm: Eduardo Martin-Martinez,
Topics in quantum information I
- December 4, 10:30 am: Daniel Huemmer,
- November 27, 10:30 am: Robert Jonsson,
Quantum theory of amplifiers
- November 25, 4:00 pm: Aristide Baratin,
Research proposal test run: combinatorial methods for quantum gravity
- November 20, 10:30 am: Achim Kempf introduces three topics for journal club:
Quantum amplifiers, Weak measurements, and Uncertainty and sampling
- November 13, 10:30 am: Robert Jonsson,
Review of a new paper by Pitkovski et al on gravitational decoherence
- November 11, 2:00 pm: Maite Dupuis,
Applications of Poisson Lie group
- November 6, 10:30 am: Michael Hartz,
Introduction to C* algebras
- November 4, 2:00 pm: Prof. Florian Girelli,
Introduction to Poisson Lie groups
- October 30, 9:30 am:
Eric Brown's qualifier from 11:00 am
- October 23, 10:30 am: Ghazal Geshnizjani,
Can non-local or higher derivative theories provide alternatives to inflation?
- October 21, 2:00 pm: Aristide Baratin,
A hint of group field theory
- October 16, 10:30 am: Yasaman Yazdi (PI),
A spacetime approach to computing entropy
- October 9, 10:30 am, MC 6334: Latham Boyle (PI),
The standard model from non-commutative geometry; and the non-associative extension
- October 2, 10:30 am, MC 6331: Katja Ried (PI),
Causal models: classical and quantum
- September 20, 2:00 pm, MC 6334: Prof. Tim Ralph (University of Queensland, Australia),
Relativistic quantum optics
- September 18, 10:30 am, MC 6334: Aida Ahmadzadegan (University of Waterloo); William Donnelly, Test runs of Banff conference talks
- Prof. Timothy Ralph (University of Queensland)
- Nick Menicucci (University of Sydney)
- August 19, 2:00 pm, MC 5158:
Master's thesis defense by Aidan Chatwin-Davies.
Examiners: Girelli, Afshordi, and Kempf. Chair: Scott.
- August 14, 10:30 am: Chris Sutherland,
On the role of locality in epistemic models
- August 12, 10:00 am, MC 5158:
Master's thesis defense by Eric Webster.
Examiners: Nayak, Koenig, and Achim Kempf.
- August 7, 10:30 am: Fabio Grazioso (University de Montreal),
Uses of NV defects in diamonds: qubits, entanglement, single photon sources and QKD
- July 31, 10:30 am: Eric Webster,
High energy modifications of blackbody radiation and dimensional reduction
- July 10, 10:30 am:
Journal Club and report on RQI-N from Robert
- June 26, 10:30 am: Michael Rouben,
Scalar field perturbations in a bounce cosmology
- June 19, 2:00 pm, Gravity Room at PI: Robert Jonsson,
Quantum signalling with Unruh-DeWitt detectors
- June 12, 10:30 am: William Donnelly,
Euclidean Maxwell theory in curved spacetime
- June 5, 2:00 pm, meet in the atrium at PI: Robert Martin (University of Cape Town)
Representation theory of symmetric operators
- May 30, 4:00 pm: John Klauder (University of Florida)
Completing canonical quantization
- May 29, 10:30 am: Xian Ma (IQC)
Envariance: environmental assisted invariance
- May 6, 3:30 pm: Aidan Chatwin-Davies,
On the vacuum and path integrals
- April 29, 3:30 pm: Razieh Pourhasan (PI),
On holographic entanglement entropy
- April 22, 3:30 pm, Mike & Ophelia Lazaridis Quantum-Nano Centre (QNC) B201: Dr. William Donnelly
- April 8, 3:30 pm: Aron Wall, (UC Santa Barbara),
Maximin surfaces and holographic entanglement entropy
- April 1, 3:30 pm:
- March 25, 3:30 pm: Yigit Subasi (University of Maryland),
Equilibration in the strong coupling regime
- March 18, 3:30 pm:
- March 4, 3:30 pm:
- February 25, 3:30 pm: Aharon Brodutch (IQC),
- February 11, 3:30 pm:
- February 4, 3:30 pm: Hilary Carteret (PI),
Some semi-classical relativistic effects that may be relevant to R-QIP using Unruh- squeezed states
- January 28, 4:30 pm: Eugenio Bianchi (PI),
Black hole entropy from graviton entanglement
- January 21, 3:30 pm:
10 minute summaries
- December 14, 10:00 am:
- December 7, 9:00 am: Luis Garay (Universidad Complutense de Madrid),
Black holes: to be or not to be, that is the question
- November 30, 10:30 am: Mehdi Saravani,
Empty black holes, firewalls, and the origin of Beckenstein-Hawking entropy
- November 23, 10 am: Eric Webster,
Introduction to prolate spheroidal wavefunctions
- November 16, 10:30 am:
- November 9, 10:00 am: Mikhail Panine,
Progress report: numerical exploration of inverse spectral geometry for a set of surfaces in R3
- November 2, 10:00 am: Eduardo Martin-Martinez,
Processing quantum information with relativistic motion of atoms
- October 26, 10:45 am: Robert Jonsson,
Causal femion systems and the fermionic projector
- October 19, 11:00 am: Aidan Chatwin-Davies,
A fully-covariant natural ultraviolet cutoff in inflationary spacetimes
- October 12, 10:00 am:
- August 23, 3:00 pm: Dr. Ghazal Geshnizjani,
Scale-invariant perturbations without inflation, yes or no?
- August 23, 12:00 pm, Research Advancement Centre (RAC) 2009: Thomas Blasi (Harvard),
Coherent control of charge states in coupled quantum dots
- August 22, 11:00 am: Dr. Robert Koenig,
Limits on classical communication over quantum channels and their cryptographic use
- August 15, 11:00 am, Dr. Ghazal Geshnizjani,
Survey of issues in inflationary cosmology
- July 13, 11:30 am: Nick Menicucci (University of Sydney),
Acceleration-assisted entanglement harvesting
- July 4, 11:00 am: Jaques Pienaar (University of Queensland),
Quantum experiments in gravitational fields may lead to more than just decoherence
- June 22, 2:00 pm: William Donnelly (University of Waterloo, University of Maryland),
On the entanglement entropy of gauge fields
- June 21, 2:00 pm: David Aasen, Aidan Chatwin-Davies, and William Donnelly,
Test runs of their conference talks next week.
- June 21, 11:00 am: Sebastian Probst (Karlsruhe Institute of Technology, Germany),
Towards an erbium quantum memory for superconducting qubits
- June 19, 11:00 am: Laurel Haskins-Stephenson (UCSC), two half-length talks on
Introduction to holography and Aspects of spectral geometry
- June 18, 11:00 am: Lucas Hackl (PI),
Symplectic geometry, constrained systems and shape dynamics
- June 15, 4:00 pm: Spiros Michalakis (CalTech),
Introduction to quasi-adiabatic evolution
- June 13, 2:30-3:00 pm: Mercedes Martin-Benito (PI),
Introduction to loop quantum cosmology,
- June 13, 3:15-3:45 pm: Sammy Ragi (University of Nottingham),
The nature of correlations in ghost imaging
- June 6, 2:00 pm, University de Montreal:
Achim Kempf talks at Workshop on Geometry of Eigenvalues and Eigenfunctions.
- May 31, 11:00 am: Tejal Bhamre (Princeton University),
On colored graphs
- May 25, 3:00 pm, Sky Room at PI: Achim Kempf talks in PSI seminar,
How spacetime could be simultaneously continuous and discrete, in the same way that information can be
- May 24, 2:00 pm: Prof. John Klauder (University of Florida),
Affine quantum gravity: review and recent results
- May 24, 11:00 am: David Aasen,
On the spectral geometry of graphs
- May 18, 2:00 pm: Eduardo Martin-Martinez,
The Unruh-Dewitt detector model and its use in relativistic quantum information
- April 25, 11:00 am:
Group discussion of projects
- April 19, 11:00 am: Siavash Aslanbeigi (University of Waterloo and PI),
On vacuum energy in cosmology
- April 5, 11:00 am: Chris Ferrie,
Negativity of the Wigner function is necessary for magic state distillation
- April 2, 10:00 am: Robert Martin (University of Cape Town),
Reproducing kernel Hilbert spaces of square integrable functions
- March 30, 2:30 pm: Robert Martin (University of Cape Town),
Covariant sampling theory in cosmology
- March 29, 11:00 am: David Rideout (UC San Diego),
Testing Quantum Theory at large length/time scales with satellites - towards the scale of spacetime curvature and beyond
- March 26, 10:00 am: Maite Dupuis (ENS Lyon, France),
On harmonic oscillators in loop quantum gravity
- March 22, 11:00 am: Eric Brown (Department of Physics and Astronomy, University of Waterloo),
On quantum discord
- March 19, 10:00 am:
Group discussion of projects.
- March 15, 11:35 am: Markus Mueller (PI),
Concentration of measure for quantum states with a fixed expectation value
- March 12, 9:00 am: Eduardo Martin-Martinez,
Review of current research projects in relativistic quantum information
- March 8, 10:00 am: Kiril Datchev (Massachusetts Institute of Technology (MIT)),
On inverse spectral geometry
- March 5, 10:00 am: Aidan Chatwin-Davies,
Review of a paper by Datchev & Hezari on spectral geometry IV
- February 17, 10:30 am: Robert Jonsson,
Review of a paper by Datchev & Hezari on spectral geometry III
- February 10, 10:30 am: Mikhail Panine,
Review of a paper by Datchev & Hezari on spectral geometry II
- February 3, 10:30 am: Aidan Chatwin-Davies,
Review of a paper by Datchev & Hezari on spectral geometry I
- January 27, 10:30 am: Eric Webster,
On the asymptotics of superoscillations
- January 25, 9:30 am: David Bruschi (University of Nottingham),
How cavities' motion affects entanglement
- January 20: Jeff Hnybida (PI),
BF-theory and spin foam models III
- January 12: Jeff Hnybida (PI),
BF-theory and spin foam models II
- December 15, 11:00 am: Jonathan Ziprick (PI),
Relating loop quantum gravity and general relativity
- December 9, 11:00 am: Mikhail, Aidan and Robert,
15 minute applied functional analysis seminars.
- December 7, 11:00 am: Yufang Hao,
The Shannon sampling theorem: Fourier and functional analytic approach
- November 30, 4:30 pm: Cedric Beny (University of Hannover, Germany),
On entanglement renormalization
- November 30, 11:00 am: Aharon Brodutch (Macquarie University, Sydney, Australia),
Polarized photon qubits in curved space-time
- November 23, 11:00 am: Eric Webster,
Properties of entanglement entropy
- November 18, 11:00 am: Alexander Gutfraind (University of Texas at Austin),
Aspects of network theory
- November 17, 2:30 pm, MC 5136: Alexander (Sasha) Gutfraind (University of Texas at Austin),
Computational problems on complex networks
- November 16, 11:00 am: Aidan Chatwin-Davies,
On the partial trace over subsystems II
- November 11, 11:00 am: Aidan Chatwin-Davies,
On the partial trace over subsystems I
- November 9, Jeff Hnybida (PI),
BF-theory and spin foam models I
- November 3, 10:00 am: Eduardo Martin-Martinez (University of Madrid),
Aspects of relativistic quantum information
- November 2, 11:00 am: Hans Westman (University of Sydney and PI),
Localized q-bits in curved spacetimes
- October 27, 3:30 pm: (refreshments in PHY151), 4pm: Colloquium in PHY151, Prof. John Klauder, (University Florida),
- October 26, 3:00 pm: Spiros Mikalakis (CalTech),
Stability of frustration-free Hamiltonians II
- October 24, 11:00 am: Aron Wall (UC Santa Barbara),
On black hole thermodynamics
- October 24, 4:00 pm, Time Room at PI: Spiros Michalakis (CalTech),
Stability of frustration-free Hamiltonians I
- October 19, 10:00 am: Chris Ferrie,
On the sampling of probability distributions
- October 19, 11:00 am: Federico Piazza (University de Paris 7),
Spontaneous symmetry probing states
- October 12, 11:00 am: Prof. John Klauder (University of Florida),
On affine quantization methods
- October 7, 10:30 am: Prof. Naoki Saito (UC Davis),
New methods for radar and sonar
- October 6, 3:30 pm: MC 5136, Prof. Naoki Saito (UC Davis), Harmonic/wavelet analysis on graphs and networks with applications
- October 5, 11:00 am: Prof. Naoki Saito (UC Davis), Laplacian Eigenfunctions that do not feel the boundary: theory, computation and applications
- October 4, 9:00 am-12:00 pm: Achim Kempf,
Sampling of curvature II
- October 3, 9:00 am-12:00 pm: Achim Kempf,
Sampling of curvature I
- September 28, 9:00 am-12:00 pm: Achim Kempf,
- September 21, 3:30 pm: MC 5136:
Master's defense by Eduardo Brandao.
- September 21, 11:00 am: Achim Kempf,
Generalized uncertainty relations II
- September 19, 3:00 pm: in MC 5136:
PhD defense by Yufang Hao
- September 16, 4:00 pm: Yufang Hao:
Test run of his PhD defense presentation
- September 14, 11:00 am: Achim Kempf,
Generalized uncertainty relations I
- Prof. John Klauder (University of Florida)
- Prof. Naoki Saito (University of California (UC) Davis)
- Spiros Michalakis (California Institute of Technology)
- Sasha Gutfraind (University of Texas)
- Aron Wall (UC Santa Barbara)
- Eduardo Martin-Martinez (University of Madrid)
- August 25, 11:00 am: David Aasen (McGill University),
Creating a spin polarized wave packet
- August 24, 11:00 am: Tejal Bhamre (IIT Bombay & Princeton),
Jet detection algorithms using Haar wavelets
- August 18: M. Nica, E. Bembenek, and M. Panine
presentations at Applied Math undergraduate research conference.
- August 18, 11:00 am:
M. Nica, E. Bembenek, and M. Panine give more trial runs of their conference talks.
- August 17, 11:00 am:
E. Bembenek and M. Panine give trial runs of their conference talks.
- June 22, 11:00 am: Prof. J. Emerson,
Ontological models for quantum theory
- June 15, 11:00 am: E. Bembenek,
On spikes in superoscillatory waves
- June 8, 11:00 am: R. Pfeifer (University of Queensland and PI),
Simulating anyons in condensed matter physics
- June 2: 11:00 am: Mihai Nica,
Models of competitive games and transitive versus nontransitive rankings II
- May 25: 11:00 am: L. Stephenson Haskins, and I. Roth,
Aspects of infinitesimal spectral geometry
- May 18, 11:00 am: M. Panine,
Dielectic Microresonators: applications, perturbative treatment and finite element simulation
- May 11, 11:00 am: M. Nica,
An evolutionary algorithm for leg dynamics,
and Eric Bembenek,
On stratified fluid flows
- May 10, 10:00 am-5:00 pm:
Summer project planning
- May 4, 2:00 pm:
Group discussion of research topics III
- May 4, 11:00 am: M. Nica,
Models of competitive games and transitive versus nontransitive rankings I
- May 3, 11:00 am:
Group discussion of research topics II
- May 2, 1:00 pm:
Group discussion of research topics I
- April 26, 3:00 pm: Achim Kempf gives Institute for Quantum Information and Matter (IQI) colloquium talk at CalTech, Spacetime could be simultaneously continuous and discrete in the same way that information can
- April 8, 12:00 pm: Achim Kempf talks in Gravity Seminar at UC Santa Barbara, Spacetime could be simultaneously continuous and discrete in the same way that information can
- March 30, 10:00 am: Eduardo Brandao, Gauge invariant perturbations on the 2-sphere
- March 24, 11:30 am: Olaf Dreyer, On quasinormal modes of black holes
- March 4: Achim Kempf gives seminar in Department of Mathematics at University of Toronto, Infinitesimal inverse spectral geometry and applications in mathematical physics
- March 2: Alessio Orlandi (University of Bologna and Istituto Nazionale di Fisica Nucleare (INFN), Italy), A Glimpse of the Kodama vector
- February 28: Jay Olsen (University of Queensland, Australia), Timelike entanglement in the quantum vacuum
- February 24: Achim Kempf gives colloquium at the Santa Fe Institute, Spacetime could be simultaneously continuous and discrete, in the same way that information can be
- February 23: Achim Kempf gives colloquium at Los Alamos National Lab (LANL), Spacetime could be simultaneously continuous and discrete, in the same way that information can be
- February 22: Achim Kempf gives colloquium at the LANL, High Tc superconductivity and the Casimir/van der Waals effect
- February 2: F. Piazza (University de Paris 7), Modifying gravity in the Infrared by imposing an 'ultra-strong' equivalence principle
- January 26: Andy Randono (PI), Torsional Skyrmions
- January 19: Loic Markley (University of Toronto), Superresolution: theory and practice
- January 12: Florian Conrady (PI), Space as a low-temperature regime of graphs
- December 20: Achim Kempf talks at Heidelberg University, Germany
- December 17: Achim Kempf talks at Albert Einstein Institute (AEI), Potsdam, Germany
- December 1: Alioscia Hamma (PI), Locality of dynamics and the structure of correlations in quantum many body systems
- November 4, 2:30 pm, MC 5136: Frederic Schuller (Einstein Institute, Golm, Germany), TBA
- October 29, 11:00 am: Alexander Gutfraind (LANL), On the resilience of networks
- October 27: Mikhail Panine, two-part talk, On gravitational lensing/On the Helmholtz equation in dielectric cavities
- October 20: Olaf Dreyer, Internal relativity: quantum gravity without quantization
- October 14, MC 5136: Prof. Almut Burchard (University of Toronto), Convergence and smoothing properties of Steiner symmetrizations and other simple rearrangements
- October 13, 9:00 am: mini workshop on entanglement entropy in quantum field theory.
- Speakers: Miyake, Piazza, Casini, Myers, Smolkin, and Sinha.
- October 6, 4:00 pm, Bob Room at PI: Prof. John Klauder (University of Florida), Proposal for divergence-free quantization of covariant scalar fields
- October 6: Robert Martin, (UC Berkeley), On a covariant UV cutoff in cosmology
- September 29: Eduardo Brandao, On H. Nielsen's random dynamics
- September 22: Chris Ferrie, Optimal quantum state estimation
- September 17, 11:00 am: Piero Nicolini (University of Frankfurt), Evaporating black holes in the presence of a minimal length
- September 17, 2:00 pm: Benjamin Niedner, Hausdorff dimension of particle paths inquantum spacetime
- September 17, 2:30 pm: Martin Sprenger, Neutrino oscillations in a minimal length model
- September 13: Achim Kempf talks at CITA/PI meeting in Toronto.
- Prof. Almut Burchard (University of Toronto), October 14
- Frederic Schuller (AEI), October 26 - November 9
- Robert Martin (UC Berkeley): October 4-9 and 11-14
- Prof. John Klauder (University of Florida): October 5-8
- Alexander Gutfraind (Los Alamos National Laboratory, U.S.)
- Piero Nicolini (University of Frankfurt): September 15-October 1
- Benjamin Niedner, Martin Sprenger: September 11-18
- August 1-15: Achim Kempf teaches at a summer school in Ftan, Switzerland.
- July 7: Mathieu Cliche, On the propagation of quantum information in field quanta
- June 30, 3:00 pm: Tejal Bhamre, On inverse spectral geometry
- June 30, 11:00 am: David Aasen, On quantum fluctuations
- June 29, 6:00 pm: Group dinner at Mandarin Restaurant
- June 29, 11:00 am: Olaf Dreyer, Review of Sakharov's induced gravity
- June 24, 2:00 pm: Eduardo Brandao, Aspects of spectral geometry II
- June 23, 11:00 am: Michel Elnaggar, MIMO systems
- June 16: Eduardo Brandao, Aspects of spectral geometry
- June 2: Miok Park, Holographic normalization of asymptotically flat spacetimes
- June 1, 11:30 am, Physics (PHY) 235: Achim Kempf gives Physics Seminar (PHYS 10) lecture to physics undergraduates on spacetime and information
- May 26: Matt Coles (McMaster University), TBA
- May 19: Robert Pfeiffer (University of Queensland, Australia), Interacting Fibonacci anyons and defects in conformal field theory
- May 7: Andrzej Dragan (University of Warsaw, Poland), On the black hole information paradox
- May 5: Cohl Furey (PI), Unified theory of ideals
- Prof. Robert Brout (University Libre de Bruxelles)
- April 28: Olaf Dreyer, On emergent gravity
- April 7: Andy Randono (PI), TBA
- March 29: Hans Westman (University of Sydney, Australia), On the parallel transport of qubits
- March 24: Chris Ferrie, Bayesian probability in quantum theory
- March 10: Piero Nicolini, Evaporating black holes in the presence of a minimal length
- February 24: Olaf Dreyer, Internal relativity, early universe cosmology IV
- February 10: Olaf Dreyer, Internal relativity, early universe cosmology III
- February 3: Olaf Dreyer, Gravity as an entropic force - discussion of Verlinde's paper
- January 27: Eduardo Brandao, A review of spectral geometry
- January 10: Achim Kempf talks at Department of Mathematics, University of Goettingen.
- Prof. Robert Brout (University Libre de Bruxelles)
- Achim Kempf traveling in Australia and Europe
- November 17: Olaf Dreyer, Internal relativity, early universe cosmology II
- November 11: Olaf Dreyer, Internal relativity, early universe cosmology I
- October 21: Radu Ionicioiu (Hewlett-Packard Lab, Bristol, U.K.), Generalized parity measurements: an entanglement resource
- October 14: Nick Menicucci, (PI): Entangling power of an expanding universe
- October 7, 9:00 am: Kamil Bradler (McGill University): What can the Unruh effect say about the additivity of the classical and quantum capacity of cloning channels?
- September 16, 2:00 pm, Bob Room at PI: Achim Kempf talks in PI colloquium, Spacetime can be discrete and continuous, in the same way that information can
- September 9, Achim Kempf talks at King's College in the University of Western Ontario, On physics and consciousness
- September 2, Angus Prain (Scuola Internazionale Superiore di Studi Avanzati (SISSA), Italy), On superoscillations
- August 24: Achim Kempf talks at Emergent Gravity IV conference at UBC, (Vancouver), Spacetime could be simultaneously discrete and continuous, in the same way that information can
- August 20, MC 5136: Chuck, Peter, Raymond and Simon talk in the summer students' research conference.
- August 13: Oliver Winkler, Market efficiency
- August 12: Chuck Bronson, Filtering for time-varying bandwidths
- August 6, 11:00 am: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? VII
- August 5: Peter Forbes, On the Casimir effect in high temperature superconductors
- August 5: Raymond Su, On the design of radar signals
- July 29: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? VI
- July 23: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? V
- July 22 Mathieu Cliche, Extracting entanglement from the vacuum
- July 15: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? IV
- July 8: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? III
- July 6, 3:00 pm: Simon Foreman, On the Casimir effect in high temperature superconductors
- June 24: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? II
- June 17: Oliver Winkler, Bonds, stocks, options: how much should you pay for them? I
- June 11, 2:30 pm, PI Bistro: Achim Kempf, Information theoretic UV cutoff of spacetime II
- June 4, 2:30 pm, PI Bistro: Achim Kempf, Information theoretic UV cutoff of spacetime
- May 27, 11:00 am: Mathieu Cliche, Information flow in quantum fields
- May 20, 11:00 am: Elias Okon, On Berry phases
- May 14, 11:00 am: Cedric Beny (Centre for Quantum Technologies, National University Singapore): Joint measurability and preserved observables
- May 13, 11:00 am: Hongbao Zhang (PI), S-matrix without local quantum field theory
- May 12, 2:00 pm, MC 5136: Rob Martin (UC Berkeley) gives departmental seminar, Symmetric operators and sampling theory
- Achim Kempf on sabbatical in Europe and Australia.
- August 13: Mathieu Cliche and Jeff Li give test runs of their conference presentations
- August 6, William Donnelly, On entanglement in quantum field theory
- July 31, 2:00 pm: Angus Prain, Semi-classical gravity and backreation
- July 9, Yufang Hao: Stability of reconstruction in non-uniform sampling
- July 2: Achim Kempf, On the Casimir effect in High Tc superconductors II
- June 18: Achim Kempf, On the Casimir effect in High Tc superconductors I
- June 11: Hongbao Zhang, Generalized second law, covariant entropy bound and the cosmological constant problem
- June 4: Yufang Hao, Introduction to rate-distortion theory
- May 28, Sabine Hossenfelder (PI), Observables of quantum gravity at the LHC
- May 15, 2:00 pm, Alice Room at PI: Prof. John Klauder, Affine quantum gravity: a different view on a difficult problem
- May 14, 10:00 am, Physics (PHYS) 352: Prof. John Klauder (University of Florida), Path integration: an historical slice
- May 9, 10:00 am, MC 5158: William Donnelly's Master's defense
- May 8, 10:00 am, MC 5136: Angus Prain's Master's defense
- May 7, 9:30 am, MC 5136: Rob Martin's PhD defense
- April 30, 11:30 am: Cedric Beny, Basics of superconductivity II
- April 28, 11:30-12:30 pm, Bob Room at PI: Achim Kempf talks at PI conference Quantum Information and Graph Theory: emerging connections. Title: A Unifying View of Graph Theory in Quantum Field Theory (work with D.M. Jackson and A. Morales).
- April 25, 2:00 pm: Alejandro Borbonet, Bekenstein bounds and spectral geometry
- April 23, William G. Davis Computer Research Centre (DC) 1304: Graduate student research conference (Achim Kempf acts as judge).
- April 22, 11:00 am: Iraida Carnero, Noncommutative geometry and integrable models
- April 16: Franklin Marquezino, Simulations of quantum walks
- April 9, 11:00 am, Robert Martin, Time-varying bandwidths and invariant subspaces of differential operators
- April 2: Renato Portugal, Quantum channel capacity and the Holevo bound
- March 26: Cedric Beny, Basics of superconductivity I
- March 5: Yufang Hao, Classical Shannon channel capacity
- February 27, 4:00 pm, Bob Room at PI: Cedric Beny, Unsharp pointer observables and the structure of decoherence
- February 13, David Ostapchuk, Entanglement creation in the fermionic Unruh effect
- February 6: Renato Portugal, On quantum random walks
- February 4, 2:30 pm, PHYS 352: Prof. Paul Smrz (University of Newcastle, Australia), special seminar jointly hosted with Department of Physics and Astronomy, 5D gravity and minimum length
- January 30: Tom Waterhouse (PI), Cosmic variance of Ω
- January 23, 11:00 am: Easwar Magesan, Identification of correctable codes via twirling
- January 16: Cedric Beny, On the structure of decoherence
- Prof. Robert Brout (University Libre de Bruxelles)
- Alejandro Borbonet
- Iraida Carnero
- Prof. Paul Smrz
- Harold Steinacker
- December 9-10: group takes part in PI workshop Quantum Information Theory in Quantum Gravity.
- December 8: Achim Kempf, Rob Martin and Cedric Beny talk at Canadian Mathematical Society (CMS) winter meeting in London, Ontario, in the special session on Quantum Information Theory in Quantum Gravity.
- December 4: 11:00 am: Joe Henson (PI), On covariant discretizations II
- November 27, 10:30 am: Federico Piazza (PI), On entanglement entropy in spacetime regions
- November 20, 9:00 am: Joe Henson (PI), On covariant discretizations I
- November 13: 10:00 am: Hongbao Zhang talks on entanglement entropy and related issues.
- November 5-9: Achim Kempf co-organizes workshop at PI, Experimental Search for Quantum Gravity
- November 3, 3:00 pm, MC 5158: Prof. Ahmed Zayed (DePaul University, Chicago) talks on sampling theory in colloquium.
- October 23, 10:00 am: Angus talks on superoscillations and quasilattices
- October 16, 10am in MC 6091: Chris Ferrie review of a paper with J. Emerson.
- October 11: Achim Kempf talks in Physics at UBC.
- October 9, 10:00 am, MC 6091: John Madore (Paris), Aspects of noncommutative geometry
- October 6: Rob Martin and Yufang Hao talk at AMS meeting in Chicago.
- September 17-21: Achim Kempf talks at QFEXT07 conference in Leipzig, Germany.
- September 4-7: Achim Kempf co-organizes conference at University of Wuerzburg, Germany, Initial Conditions in Cosmology
- Prof. John Madore (Paris)
- Prof. Ahmed Zayed (Chicago)
- Prof. Robert Brout (University Libre de Bruxelles)
- Prof. Bill Unruh (University of British Columbia)
- Prof. Jens Niemeyer (Wuerzburg)
- August 5-18: Achim Kempf teaches at summer school on quantum information, Ftan, Switzerland.
- July 17: Yufang Hao, comprehensive exam.
- July 10, 11:30 am: William Donnelly report on Loops'07 conference.
- July 3, 11:30 am: Rob Martin report on SAMPTA07 conference.
- June 25-30: William Donnelly talks at Loops'07 conference in Morelia, Mexico.
- June 16-23: Achim Kempf at GRAVTUM1 conference.
- June 6-8: Yufang Hao talks at IEEE Canadian workshop on information theory, Edmonton.
- June 1-6: Achim Kempf and Rob Martin talk at SAMPTA07 conference.
- May 29, 11:30 am: Cedric report on Zakopane Winter School III.
- May 15, 11:30 am: Cedric report on Zakopane Winter School II.
- May 1, 11:30 am: Angus report on Zakopane Winter School I.
- April 24, 11:00 am, Bob Room at PI: Mauro Francaviglia, (University of Torino, Italy): Dark energy as a curvature effect in nonlinear theories of gravity
- April 19, 2:00 pm, Alice Room at PI: Mauro Francaviglia, The geometry of Barbero Immirzi connections
- April 17, 11:30 am: William, Entanglement entropy in loop quantum gravity
- April 10, 10:00 am, MC 5136: Cedric, comprehensive exam.
- March 27, 11:30 am: Robert Brout, on random walks.
- Prof. Mauro Francaviglia (University of Torino)
- Prof. John Klauder (University of Florida)
- Prof. Robert Brout (University Libre de Bruxelles)
- March 20, 10:00 am: Bernhard Bodmann, Quantum communications and an optimization problem for POVMs
- March 13, 11:30 am: Angus Prain, On the effective action of QFT in curved space, (to be confirmed).
- February 27, 11:30 am: Alejandro Morales, Intro to the effective action and graphs in QFT (5)
- February 14, 11:30 am: Group photo opportunity.
- February 13, 11:30 am: Achim Kempf, Intro to the effective action and graphs in QFT (4)
- February 6, 11:30 am: Achim Kempf, Intro to the effective action and graphs in QFT (3)
- January 30, 11:00 am, Bob Room at PI: Serge Winitzki, Quantum gravity and the conditions at the birth of the universe
- January 30, 9:00 am: Achim Kempf, Intro to the effective action and graphs in QFT (2)
- January 26, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (V)
- January 25, 2:00 pm: Florian Koch talks in PI's quantum gravity seminar.
- January 25, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (IV)
- January 23, 11:30 am: Achim Kempf, Intro to the effective action and graphs in QFT (1)
- January 22, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (III)
- January 19, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (II)
- January 18, 9:00-10:30 am, Bob Room at PI: Florian Koch, Intro to Quantum Groups (I)
- Prof. Robert Brout (University Libre de Bruxelles)
- Florian Koch (University of Munich)
- Serge Winitzki (University of Munich)
- Mauro Francaviglia (University of Torino)
- Wenfeng Chen
- December 8, 9:00 am (broadcast to Wuerzburg): Rob Martin, Sampling theoretic UV cutoff on curved spacetime
- December 6, 11:00 am: Alejandro, Gravitational entropy and Fisher information
- December 4, 3:30pm: Wenfeng Chen, Wavelets II
- November 27, 9:00 am, MC 5158: Cedric's comprehensive seminar, Transmission of observables through quantum channels
- November 24, 2:00 pm: Cedric gives test run of his comprehensive seminar.
- November 20, 9:00 am (via video conference from Wuerzburg): Tim, Loop quantum cosmology II
- November 13, 3:30pm: Wenfeng Chen, Wavelets I
- November 7, 2:00 pm (via video-conference from PI): A. Green, Dark matter in cosmology
- November 6, 9:00 am: Cedric Beny, Introduction to loop quantum cosmology
- October 30, 4:00 pm: Wenfeng Chen, From Fourier to wavelets
- October 16, 9:00 am: Angus, Introduction to quantum cosmology
- October 9: No seminar due to Thanksgiving.
- October 2: Hauke Haseler (IQC), Continuous quantum information and entanglement
- September 25: Cedric, Locking quantum information
- September 20: David, A model for mode creation in cosmology
- September 13: Larissa Lorenz (IAP, Paris), Two field inflation
- September 5-8: Achim Kempf and Justin Khouri run international workshop at PI, Planck scale cutoff in expanding spacetimes.
- September 1, 11:00 am: Tom Waterhouse (University of British Columbia), Chameleon inflation
- Wenfeng Chen
- Alejandro Borbonet
- Prof. Robert Brout (University Libre de Bruxelles)
- August 16: Chris, test run of his summer conference talk
- August 2: Chris, Introduction to phase space quantization
- July 5: Cedric, On operator quantum error correction and information flow in measurements
- July 5: Jonathan Oppenheim (Cambridge University), Negative, uncommon, and private information
- June 21: Angus, Double special relativity
- June 7: David, The cosmic microwave background II
- May 31: Adeel, On quantum fluctuations
- May 24: Joseph, Discrete vs. continuous randomization of quantum systems
- May 17: David, The cosmic microwave background I
- May 12: Bernhard, On quantum noise
- May 10: John Madore (visitor from University Paris Sud), The fuzzy sphere
- May 3: Cedric, On loop quantum cosmology
- April 26: Yufang, Spectral methods in DEs
- April 5: Rob: On sectional curvature bounds
- March 29: William: On the holographic principle
- March 22, 11:00 am, Bob Room at PI: Discussion of WMAP results
- March 8: Sasha, On the genetic code, as a code
- February 22: Cedric, Aspects of Shannon information and data compression
- February 15: Sasha, Mechanisms leading tyo power laws
- February 8: Sasha, Examples of power laws
- February 1: Rob, Sampling theory on curved space
- 25 January: William, Review of the gauge principle
- Prof. Robert Brout (University Libre de Bruxelles, Belgium)
- Alessio Notari (McGill University)
- Alejandro Borbonet (University of Mato Grosso, Brazil)
- 29 November: discussion with audio/visual people re lab.
- 15 November: Cedric, POVM versus von Neumann measurements II
- 8 November: Cedric, POVM versus von Neumann measurements I
- 1 November: William reports on his summer research, with Richard Cleves, on mutually unbiased bases and related issues.
- 25 October, MC 5158: Oliynyk (Potsdam), Newtonian Limit for Perfect Fluids
- 18 October: Sasha talks on mathematical models in epidemiology.
- 11 October: David continues his report on the conference in Brazil.
- 26 September, 2:00 pm: David reports on the conference in Brazil.
- 20 September, 3:00 pm: Joseph reviews decoherence vs. dissipation.
- 13 September: Joseph reviews decoherence.
- 7 September: Jonathan Oppenheim (Cambridge University), Locking information in black holes
- 30 April-9 May: Achim Kempf in Europe.
- 16 May: Group discussion over lunch.
- 24-26 May: Achim Kempf and Sasha at Origins conference at McMaster.
- 30 May: Rob gives test run of his talk at CMS meeting.
- 31 May: Achim Kempf and Sasha talk at Origins workshop in Hamilton.
- 4-6 June: Achim Kempf organizes special session at CMS meeting.
- 6 June: Rob talks at CMS conference.
- 13 June: Organizational meeting and general discussion.
- 16 June, 1:30 pm, MC 5158A: Achim Kempf talks on QCD in Sci. Comp./Comp. Math group.
- 20 June: AG, AS, RM and YH report on CMS conference.
- 29 June: Rob reports on CMS conference, reviewing the adiabatic theorem in quantum computing.
- 30 June, 1:30 pm, MC 5158A: Achim Kempf talks on QCD in Sci. Comp./Comp. Math group.
- 4 July: Yufang talks on Symmetric vs self-adjoint operators and sampling I
- 11 July: Yufang talks on Symmetric vs self-adjoint operators and sampling II
- 18 July: David on Quantum dissipative systems
- 25 July, 2:00 pm, Bob Room at PI: David, Inflation and violation of Bell inequalities
- 26 July, 1:30pm, MC 5136: Sasha, Genetic algorithms
- 2 August: Cedric, Decoherence
- 8 August: Cedric finishes decoherence and Yufang and Adeel talk on self-adoint extensions and sampling, and vacuum fluctuations.
- 11 August: Adeel and Yufang present at the summer student conference.
- 12 August, 1:00 pm: Cedric finishes on noiseless subsystems.
- August 12, 1:30 pm: Discussion on decoherence with visitor Dr. Jens Eisert (Potsdam).
- 13-27 August: Achim Kempf in Europe.
- 29 August: Joe reviews quantum to classical transition.
- 8 September: Joe reviews decoherence.
- B. Bodmann (University of Texas), end of May
- Prof. Robert Brout, (University of Bruxelles), mid-July to mid-August
- January 31: Sasha, From crystals to quasicrystals
- February 4: David, Growing lattices in cosmology
- February 10: Rob, Aspects of sampling theory I
- February 14: Rob, Aspects of sampling theory II
- February 21: Rob, Aspects of sampling theory III
- February 28: Sasha, Euler-Maclaurin
- March 3: Achim Kempf talks at Guelph Math student club (1:00 pm) and at Guelph Math Colloquium, (3:00 pm).
- March 7: Sasha, Euler Maclaurin
- March 21: Sasha reports on his visit to CRM Montreal.
- March 28: David, Coherent states
- April 4: David, Squeezed states
- April 25, MC 5136: Sasha, Path integration
- Prof. J. Patera (CRM and University of Montreal), mid-January
- Prof. R. Brout (University Libre de Bruxelles), end of January/early February and all of April
- G. Mangano (University of Naples, Italy and Syracuse, New York), mid-March
- Prof. R. Easther (Yale University), mid-March
- September 20: group is at COSMO-04.
- September 27: conference reviews.
- October 4: conference reviews.
- October 11: holiday (Thanksgiving).
- October 12: Achim Kempf talks at Guelph.
- October 18: Larissa on backreaction.
- October 25: Sven on backreaction.
- November 1: David on introducing aspects of inflation.
- November 8: David on squeezed states in inflation.
- November 15: David on temporal coherence of inflationary fluctuations.
- November 22: David on quantum to classical transition.
- November 29: David on decoherence in inflation.
- May 3: Bernhard Bodmann on measures of entropy.
- May 10: Not available.
- May 17: Tom on the Casimir effect.
- May 24: holiday (Victoria day).
- May 31: Tyler on decoherence.
- June 7: Rob on topics in sampling theory.
- June 18, 11:00 am: reports on Winnipeg conference.
- July 5: Sasha reports on Winnipeg conference.
- July 12: Larissa on aspects of QFT I.
- July 19: Larissa on aspects of QFT II.
- July 26: Tom on aspects of phi^4 theory.
- August 3: Tom on Feynman rules.
- August 9: Sasha on the genetic code.
- August 19: Tom on Casimir effect.
- August 23: Larissa on path integral in QFT (I).
- August 30: Sven on path integral in QFT (II).
- September 7: Rob on back reaction.
- September 13: discussion.
- February 9: Sasha on negative entropy.
- February 16: Rob on sampling I.
- February 23: Rob on sampling II.
- March 1: Tom on vacuum fluctuations.
- March 8: Matt on superoscillations.
- March 15: Rob on mode creation mechanism.
- March 22: Rob (20 minutes) and Tyler on Q. info.
- March 29: Larissa on singularity in mode equation.
- April 5: Amjad on the adiabatic theorem.