Le contenu de cette page n’est pas disponible en français. Veuillez nous en excuser.

# 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.

## PSI 2016/2017 Quantum Theory - Lecture 6

Mardi sep 13, 2016
Speaker(s):
Collection/Series:

## PSI 2016/2017 Relativity - Lecture 6

Mardi sep 13, 2016
Speaker(s):
Collection/Series:

## PSI 2016/2017 Relativity - Lecture 5

Lundi sep 12, 2016
Speaker(s):
Collection/Series:

## PSI 2016/2017 Quantum Theory - Lecture 4

Vendredi sep 09, 2016
Speaker(s):
Collection/Series:

## PSI 2016/2017 Quantum Theory - Lecture 3

Vendredi sep 09, 2016
Speaker(s):
Collection/Series:

## Surprising consequence of a positive cosmological constant

Jeudi sep 08, 2016
Speaker(s):

The study of isolated systems has been vastly successful in the context of vanishing cosmological constant, $\Lambda = 0$. However, there is no physically useful notion of asymptotics for the universe we inhabit with $\Lambda > 0$. The full non-linear framework is still under development, but some interesting results at the linearized level have been obtained. I will focus on the conceptual subtleties that arise at the linearized level and discuss the quadrupole formula for gravitational radiation.

Collection/Series:
Scientific Areas:

## Monodromy of the Casimir connection and Coxeter categories

Jeudi sep 08, 2016
Speaker(s):

A Coxeter category is a braided tensor category which carries an action of a generalised braid group $B_W$ on its objects. The axiomatics of a Coxeter category and the data defining the action of $B_W$ are similar in flavor to the associativity and commutativity constraints in a monoidal category, but arerelated to the coherence of a family of fiber functors.

Collection/Series:
Scientific Areas:

## PSI 2016/2017 Quantum Theory - Lecture 2

Jeudi sep 08, 2016
Speaker(s):
Collection/Series:

## PSI 2016/2017 Quantum Theory - Lecture 1

Jeudi sep 08, 2016
Speaker(s):
Collection/Series:

## PSI 2016/2017 Relativity - Lecture 4

Mercredi sep 07, 2016
Speaker(s):
Collection/Series:

## Next Public Lecture

### BULLETPROOF CUSTARD: FLUIDS THAT STOP FLOWING WHEN YOU PUSH THEM TOO HARD

Mercredi nov 02, 2016