# 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.

## Inflationary cosmological pertubations of quantum mechanical origin

Friday Sep 08, 2006
Speaker(s):
Scientific Areas:

## Generalized Uncertainty Principle

Friday Sep 08, 2006
Speaker(s):
Scientific Areas:

## QFT with minimum length

Friday Sep 08, 2006
Scientific Areas:

## Trans - Planckian Issues for Inflationary Cosmology

Thursday Sep 07, 2006
Scientific Areas:

## Creation of Space, Field Energy and Modes

Thursday Sep 07, 2006
Speaker(s):
Scientific Areas:

## Algebraic Quantum Gravity

Thursday Sep 07, 2006
Speaker(s):

We introduce a new top down approach to canonical quantum gravity, called Algebraic Quantum Gravity (AQG): The quantum kinematics of AQG is determined by an abstract $*-$algebra generated by a countable set of elementary operators labelled by an algebraic graph. The quantum dynamics of AQG is governed by a single Master Constraint operator. While AQG is inspired by Loop Quantum Gravity LQG), it differs drastically from it because in AQG there is fundamentally no topology or differential structure.

Collection/Series:
Scientific Areas:

## Effective actions for gravity

Thursday Sep 07, 2006
Scientific Areas:

## Thoughts on vacuum growth

Wednesday Sep 06, 2006
Speaker(s):
Scientific Areas:

## Towards a generally covariant cutoff using sampling theory

Wednesday Sep 06, 2006
Scientific Areas:

## Initial conditions in the presence of a UV cutoff: modified mode equations in inflation

Wednesday Sep 06, 2006
Speaker(s):
Scientific Areas:

## Next Public Lecture

Check back for details on the next lecture in Perimeter's Public Lectures Series

## LECTURES ON-DEMAND

### Roger Melko: Perimeter Institute and University of Waterloo

Speaker: Roger Melko