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.

: 12/13 PSI - Explorations in Particle Theory Lecture 7
Tuesday Mar 26, 2013
Speaker(s):
David Morrissey
(Flash Presentation, MP4 Low Res, MP3, PDF)
Collection/Series:
12/13 PSI - Explorations in Particle Theory

: 12/13 PSI - Explorations on Quantum Information Lecture 7
Tuesday Mar 26, 2013
Speaker(s):
David Cory
(Flash Presentation, MP4 Low Res, MP3, PDF)
Collection/Series:
12/13 PSI - Explorations on Quantum Information

: Wick's theorem for Matrix Product states
Monday Mar 25, 2013
Speaker(s):
Robert Huebener
(Flash Presentation, MP4 Low Res, MP3, PDF)

Matrix product states and
their continuous analogues are variational classes of states that capture
quantum many-body systems or quantum fields with low entanglement; they are at
the basis of the density-matrix renormalization group method and continuous
variants thereof. In this talk we show that, generically, N-point functions of
arbitrary operators in discrete and continuous translation invariant matrix
product states are completely characterized by the corresponding two- and
Collection/Series:
Perimeter Institute Quantum Discussions

Scientific Areas:

Quantum Information

: Dissecting holography with higher spins
Monday Mar 25, 2013
Speaker(s):
Xi Yin
(Flash Presentation, MP4 Low Res, MP3, PDF)

The
holographic correspondence is a powerful duality between a quantum theory of
gravity and a quantum gauge theory in one lower space-time dimension. Higher
spin gravity theories, i.e. gravity theories that also contain (gauge) fields
of spins greater than 2, play a special role in holography. I will explain
consistent interacting higher spin gravity theories in anti-de Sitter space,
their duality with gauged conformal vector models, and their connection to
string theory.

Collection/Series:
Colloquium

Scientific Areas:

Quantum Fields and Strings

: Supersymmetric gauge theory and the Yangian
Monday Mar 25, 2013
Speaker(s):
Kevin Costello
(Flash Presentation, MP4 Low Res, MP3, PDF)

I'll explain a new connection between supersymmetric
gauge theories and the Yangian. The main result is that a twisted, deformed
version of the pure N=1 supersymmetric gauge theory is controlled by the
Yangian, in the same way that Chern-Simons theory is controlled by the quantum
group. This result is used to give an exact calculation, in perturbation
theory, of the expectation value of a certain net of n+m Wilson operators in
the deformed N=1 gauge theory. This expectation value coincides with the
Collection/Series:
Colloquium