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Wednesday, June 12, 2019 10:00 am - 10:00 am EDT (GMT -04:00)

Untangling entanglement and chaos

Meenu Kumari

How does classical chaos affect the generation of quantum entanglement? What signatures of chaos exist at the quantum level and how can they be quantified? These questions have puzzled physicists for a couple of decades now. We answer these questions in spin systems by analytically establishing a connection between entanglement generation and a measure of delocalization of a quantum state in such systems. While delocalization is a generic feature of quantum chaotic systems, it is more nuanced in regular systems.

Thursday, July 18, 2019 2:00 pm - 2:00 pm EDT (GMT -04:00)

Hamiltonian Simulations: Methods, Applications, and Outlook

Quantum Information Seminar

Mária Kieferová
Ph.D. Graduate Student, Physics (Quantum Information)

Abstract:

One of the first applications of quantum computing was simulating the evolution of a closed system. In this talk, I will review Hamiltonian simulation techniques ranging from the earliest results for simulating Hamiltonian evolution to recent methods based on linear combination of unitaries and quantum signal processing. I will also discuss some of the open questions in Hamiltonian simulations. 

Based on arXiv:1812.09976

Monday, August 12, 2019 7:30 pm - 11:00 pm EDT (GMT -04:00)

Perseids Sky-watching Party and Cosmic Mirages Lecture

telescopes pointed at the skyExplore the night sky with astronomers from the Faculty of Science and Royal Astronomical Society of Canada. The Perseids meteor shower will be at its most spectacular, so let's gather to learn something and then enjoy the view!

Mahmood Sabooni
Wednesday, September 4, 2019 12:30 pm - 12:30 pm EDT (GMT -04:00)

How long can you remember a thing in the quantum world?

Phys10 Undergraduate Seminar Series

Mahmood SabooniDr. Mahmood Sabooni, Institute for Quantum Computing

Have you ever looked at a flame dancing in the air and asked yourself what a flame really is? For instance, what happens when we burn firewood (matter) and thus change it to light and heat (energy). Simply speaking, when you ask such questions you are wondering about two physical quantities, light and matter. Clearly many over the history of time have thought about the interaction between light and matter, and some have thought more in depth in order to understand the basic phenomenon related to this interaction.

Norbert Werner
Friday, September 13, 2019 11:30 am - 11:30 am EDT (GMT -04:00)

Hot Atmospheres and Black Hole Activity in Massive Galaxies

Astronomy Seminar Series

Norbert WernerNorbert Werner

Norbert Werner is the leader of the “Lendület Hot Universe” research group at Eötvös Loránd University in Budapest, Hungary, an associate professor (Docent) in the Department of Theoretical Physics and Astrophysics at the Masaryk University in Brno, Czech Republic, and a specially appointed associate professor in the School of Science at Hiroshima University, Japan. 

Perimeter Institute for Theoretical Physics
Wednesday, September 18, 2019 12:15 pm - 12:15 pm EDT (GMT -04:00)

Perimeter Institute for Theoretical Physics Tour

Perimeter Institute for Theoretical PhysicsPhys10 Undergraduate Seminar Series

On September 18th, we will be visiting the Perimeter Institute, the epicentre for theoretical physics, with focus ranging from quantum foundation, to quantum gravity, to quantum fields and strings, particle physics, to condensed matter and quantum information science, and to cosmology.

Wednesday, September 25, 2019 11:15 am - 11:15 am EDT (GMT -04:00)

Optically thick accretion: theory and new developments

Astronomy Seminar Series

Maciej Wielgus

I will discuss the optically thick models of accretion, including analytic models such as Shakura-Sunyaev's thin disk solution, slim disks and geometrically thick disks. I will talk about their properties, such as stability, angular momentum transport, and the importance of radiation.

Wednesday, October 2, 2019 11:15 am - 11:15 am EDT (GMT -04:00)

The Black Hole-Jet Connection in M87: Linking Simulations to VLBI images

Astronomy Seminar Series

Andrew Chael

The Event Horizon Telescope (EHT) has produced the first image of the 1.3 mm-wavelength emission around the black hole “shadow” at the heart of M87. Because the EHT's dynamic range is currently limited, this image does not show emission from the famous relativistic jet which is prominent in VLBI images at longer wavelengths. I will discuss how large-scale numerical simulations connect VLBI images of the shadow at 1.3 mm to images of the jet at longer wavelengths and constrain the physics of the jet launching region.