# 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.

## Coexistence of qubit observables

Monday Jan 24, 2011
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Quantum mechanics does not allow us to measure all possible combinations of observables on one system. Even in the simplest case of two observables we know, that measuring one of the observables changes the system in such way, that the other measurement will not give us desired precise information about the state of the system.

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## Cosmology Review - Lecture 2

Monday Jan 24, 2011
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## Quantum Gravity Review - Lecture 1

Monday Jan 24, 2011
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## Cosmology Review - Lecture 1

Monday Jan 24, 2011
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## Deformations, bions, and (de)confinement

Friday Jan 21, 2011
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Recent observations first made in string theory led to the realization that introducing various deformations" (finite volume, appropriate

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## Foundations of Quantum Mechanics - Lecture 15

Friday Jan 21, 2011
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## Condensed Matter Review - Lecture 15

Friday Jan 21, 2011
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## Standard Model - Lecture 15

Friday Jan 21, 2011
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## Foundations of Quantum Mechanics - Lecture 14

Thursday Jan 20, 2011
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## Condensed Matter Review - Lecture 14

Thursday Jan 20, 2011
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## Next Public Lecture

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

## RECENT PUBLIC LECTURE

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

Speaker: Janna Levin