Future undergraduate students

Ivette Fuentes, The University of Nottingham

Quantum technologies are widely expected to bring about many key technological advances this century. Quantum metrology and quantum information have been so far successfully applied in the design of devices that outperform their classical counterparts by exploiting quantum properties. Impressively, the quantum era is now reaching relativistic regimes. Table-top experiments demonstrate relativistic effects in quantum fields and long range quantum experiments will soon reach regimes where relativity kicks in.

Monday, June 2, 2014 2:30 pm - 3:30 pm EDT (GMT -04:00)

Gharibian: Ground state connectivity of local Hamiltonians

Sevag Gharibian, University of California, Berkeley

The study of ground spaces of local Hamiltonians is a fundamental task
in condensed matter physics. In terms of computational complexity
theory, a common focus in this area has been to estimate a given
Hamiltonian’s ground state energy. However, from a physics
perspective, it is often more relevant to understand the structure of
the ground space itself. In this paper, we pursue the latter direction
by introducing the notion of “ground state connectivity” of local

Wednesday, May 21, 2014 1:00 pm - 2:00 pm EDT (GMT -04:00)

Elkouss: Analysis of a rate-adaptive reconciliation protocol

David Elkouss, Universidad Complutense de Madrid

"Quantum key distribution performs the trick of growing a secret key in two distant places connected by a quantum channel. In practical systems, whether because of finite resources or external conditions, the quantum channel is subject to fluctuations. A rate adaptive information reconciliation protocol, that adapts to the changes in the communication channel, is then required to minimize the leakage of information in the classical postprocessing.

Monday, May 12, 2014 2:30 pm - 3:30 pm EDT (GMT -04:00)

Fawzi: Achieving the limits of the bounded/noisy quantum-storage model

Omar Fawzi, McGill University

The goal of two-party cryptography is to enable Alice and Bob to solve tasks in cooperation even if they do not trust each other. Examples of such tasks include bit commitment, coin flipping and oblivious transfer. Unfortunately, it has been shown that even using quantum communication, none of these tasks can be implemented when the adversary is completely general.

Amir Jafari-Salim, IQC

In this talk, I will give a summary of my recent research on superconducting nanostructures for quantum detection of electromagnetic radiation. In this regard, electrodynamics of topological excitations in 1D superconducting nanowires and 2D superconducting nanostrips is investigated. Topological excitations in superconducting nanowires and nanostrips lead to crucial deviation from the bulk properties.

Tuesday, April 22, 2014 11:00 am - 12:00 pm EDT (GMT -04:00)

Hilke: Graphene growth and characterization for device applications

Michael Hilke, McGill University

We will review several proof of principle applications for graphene based devices performed in our group, including in field sensors, electronics, THz spectroscopy, spintronics, nanofluidics, and even musical instruments. We will then discuss the synthesis mechanism of graphene as well as the synthesis of very large single layered graphene monocrystals with various shapes, ranging from hexagons to fractals, dubbed graphlocons.

Thursday, April 17, 2014 12:00 pm - 1:00 pm EDT (GMT -04:00)

Kothari: Exponential improvement in precision for simulating sparse Hamiltonians

Robin Kothari

We provide a quantum algorithm for simulating the
dynamics of sparse Hamiltonians with complexity sublogarithmic in
the inverse error, an exponential improvement over previous methods.
Unlike previous approaches based on product formulas, the query
complexity is independent of the number of qubits acted on, and for
time-varying Hamiltonians, the gate complexity is logarithmic in the
norm of the derivative of the Hamiltonian. Our algorithm is based on
a significantly improved simulation of the continuous- and

Monday, May 26, 2014 2:30 pm - 3:30 pm EDT (GMT -04:00)

Xiaodong Xu: Spin and pseudospins in 2D semiconductors

Xiaodong Xu, The University of Washington

Electronic valleys are extrema of Bloch energy bands in momentum space. Having multiple valleys gives the electron states pseudospin degrees of freedom in addition to their real spin. In this talk, I will discuss our experimental progress on the investigation of spins and pseudospins using atomically thin semiconductors, which are either single or bilayer group VI transition metal dichalcogenides.

Monday, May 26, 2014 12:00 am - Friday, June 6, 2014 12:00 am EDT (GMT -04:00)

Undergraduate School on Experimental Quantum Information Processing (USEQIP)

The Undergraduate School on Experimental Quantum Information Processing (USEQIP) is a two-week program on the theoretical and experimental study of quantum information aimed primarily at students completing their third undergraduate year. The lectures and experiments are geared toward students in engineering, physics, chemistry, mathematics and computer science, though all interested students are invited to apply.