# Video Library

Since 2002 Perimeter Institute has been recording seminars, conference talks, and public outreach events 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 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.

## Beyond the Standard Model Physics and the LHC (Lecture 2)

Thursday Apr 01, 2010
Speaker(s):

These three lectures cover several ideas of physics beyond the Standard Model. My focus is on ideas that give a natural stabilization solution to the electroweak scale, which is mysteriously light compared to the gravitational Planck scale. These ideas include supersymmetric field theories, extra dimensions, and Higgs boson physics. I shall describe what I think are the "best bets" among these approaches, and more importantly the ways they can be discerned by experiment.

## Explorations in Particle Theory (PHYS 646) - Lecture 15

Thursday Apr 01, 2010
Speaker(s):

## Explorations in Cosmology (PHYS 649) - Lecture 15

Thursday Apr 01, 2010
Speaker(s):

## Explorations in Cosmology (PHYS 649) - Lecture 14

Wednesday Mar 31, 2010
Speaker(s):

## Topological insulators and topological superconductors

Wednesday Mar 31, 2010
Speaker(s):

Recently, a new class of topological states has been theoretically predicted and experimentally realized. The topological insulators have an insulating gap in the bulk, but have topologically protected edge or surface states due to the time reversal symmetry. In two dimensions the edge states give rise to the quantum spin Hall (QSH) effect, in the absence of any external magnetic field. I shall review the theoretical prediction[1] of the QSH state in HgTe/CdTe semiconductor quantum wells, and its recent experimental observation[2].

Collection/Series:

## Explorations in Numerical Relativity (PHYS 642) - Lecture 13

Wednesday Mar 31, 2010
Speaker(s):

## Explorations in Particle Theory (PHYS 646) - Lecture 14

Wednesday Mar 31, 2010
Speaker(s):

## Explorations in Cosmology - Lecture 13

Wednesday Mar 31, 2010
Speaker(s):

## CauCats: the backbone of a quantum relativistic universe of interacting processes

Tuesday Mar 30, 2010
Speaker(s):

Our starting point is a particular canvas' aimed to draw' theories of physics, which has symmetric monoidal categories as its mathematical backbone. With very little structural effort (i.e. in very abstract terms) and in a very short time this categorical quantum mechanics research program has reproduced a surprisingly large fragment of quantum theory. Philosophically speaking, this framework shifts the conceptual focus from `material carriers' such as particles, fields, or other

Collection/Series:
Scientific Areas:

## Quantum Field Theory for Cosmology - Lecture 21

Tuesday Mar 30, 2010
Speaker(s):

## Next Public Lecture

### THE TRUTH IS IN THE STARS, a Star Trek Documentary

Wednesday Jun 14, 2017

## RECENT PUBLIC LECTURE

### Janna Levin: Black Hole Blues and Other Songs from Outer Space

Speaker: Janna Levin