# Video Library

Since 2002 Perimeter Institute has been recording seminars, conference talks, public outreach events such as talks from top scientists using video cameras installed in our lecture theatres.  Perimeter now has 7 formal presentation spaces for its many scientific conferences, seminars, workshops and educational outreach activities, all with advanced audio-visual technical capabilities.

Recordings of events in these areas are all available and On-Demand from this Video Library and on Perimeter Institute Recorded Seminar Archive (PIRSA)PIRSA is a permanent, free, searchable, and citable archive of recorded seminars from relevant bodies in physics. This resource has been partially modelled after Cornell University's arXiv.org.

Accessibly by anyone with internet, Perimeter aims to share the power and wonder of science with this free library.

## PSI 2018/2019 - Quantum Theory - Lecture 14

Friday Sep 21, 2018
Speaker(s):

Summary info-graphic, no-cloning, quantum teleportation

## PSI 2018/2019 - Relativity - Lecture 15

Friday Sep 21, 2018
Speaker(s):

Black hole thermodynamics, Euclidean trick, Unruh radiation, Hawking-Page transition

## Toward AGT for general algebraic surfaces

Thursday Sep 20, 2018
Speaker(s):

The Alday-Gaiotto-Tachikawa correspondence connects gauge theory on a fourfold with conformal field theory. We are interested in a certain algebro-geometric incarnation of this framework, where the fourfold is an algebraic surface and instantons/differential geometry are replaced with sheaves/algebraic geometry. In this talk, we will present a certain approach to AGT that yields partial results for quite general surfaces, and ask questions about what still needs to be done to state and prove the full correspondence in the language of algebraic geometry.

Collection/Series:
Scientific Areas:

Thursday Sep 20, 2018
Speaker(s):

I will discuss certain irrelevant operator deformations of holographic conformal field theories that define a one parameter family of quantum field theories which are thought to be dual to quantum gravity in finite regions.
Some examples include the "$T\bar{T}$ deformation of two dimensional holographic CFTs, its generalisations and higher dimensional cousins.

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## PSI 2018/2019 - Quantum Theory - Lecture 13

Thursday Sep 20, 2018
Speaker(s):

Realistic postulates of QM (Church of the Llarger Hilbert space)

## PSI 2018/2019 - Relativity - Lecture 14

Thursday Sep 20, 2018
Speaker(s):

Black holes: Dark stars, Rindler space analogy, Kruskal extension, Astrophysical BHs

## Adiabatic optimization without a priori knowledge of the spectral gap

Wednesday Sep 19, 2018
Speaker(s):

Performing a quantum adiabatic optimization (AO) algorithm with the time-dependent Hamiltonian H(t) requires one to have some idea of the spectral gap γ(t) of H(t) at all times t.

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## Computational Physics - Lecture 3

Wednesday Sep 19, 2018
Speaker(s):

## PSI 2018/2019 - Quantum Theory - Lecture 12

Wednesday Sep 19, 2018
Speaker(s):

Composite systems, Entanglement

## Renormalization and Effective Field Theory - Lecture 1

Wednesday Sep 19, 2018
Speaker(s):
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## Next Public Lecture

### JOCELYN BELL BURNELL: UNIVERSITY OF OXFORD

Thursday Oct 25, 2018

## LECTURES ON-DEMAND

### Avery Broderick: Perimeter Institute and University of Waterloo

Speaker: Avery Broderick