# 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.

## Introduction to quantum groups 5

Friday Jan 26, 2007
Speaker(s):

Quantum Groups in Physics.
With the gained background we want to review known quantum groups that became relevant in physics.
Especially q-Deformation, kappa-Poincare- and theta-Poincare-Algebras are discussed.

## Introduction to quantum groups 4

Thursday Jan 25, 2007
Speaker(s):

This is the central unit of the course - we quantize universal enveloping algebras and their duals. Central discussion is the fact that for the first type of Hopf-algebras the deformation of the coproduct is sufficient and for the second type it is the dual multiplication. This motivates the way quantization is performed in particular and how this gives rise for noncommutativity for the module and comodule spaces that are so interesting for physics. Currently most popular way to quantize universal enveloping algebras is the twisting according to Drinfeld.

## Graduate Course on Standard Model & Quantum Field Theory - 10B

Wednesday Jan 24, 2007
Speaker(s):

Graduate Course on Standard Model & Quantum Field Theory

## Physics of Magnetic Reconnection

Wednesday Jan 24, 2007
Speaker(s):

Understanding magnetic reconnection is one of the major challenges of plasma physics. It plays an essential role in a wide range of physical systems such as stellar flares, accretion disks, active galactic nuclei, astrophysical dynamos and closer to home, intense magnetic energy releases in the Earth's magnetosphere. It is a phenomena which can be created in the laboratory.

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## Graduate Course on Standard Model & Quantum Field Theory - 10A

Wednesday Jan 24, 2007
Speaker(s):

Graduate Course on Standard Model & Quantum Field Theory

## Quantum Error Correction 3B

Tuesday Jan 23, 2007
Speaker(s):

Clifford group as symplectic group, generators of the Clifford group & encoding circuits for stabilizer codes, efficient simulation of Clifford group circuits, efficient simulation of Pauli measurements

## Quantum Error Correction 3A

Tuesday Jan 23, 2007
Speaker(s):

Finite field GF(4), stabilizer codes as GF(4) codes, perfect quantum codes, definition of Clifford group, sample elements of Clifford group

## Domain Lines as Fractional Strings

Tuesday Jan 23, 2007
Speaker(s):

We consider N=2 supersymmetric quantum electrodynamics (SQED) with 2 flavors, the Fayet--Iliopoulos parameter, and a mass term $beta$ which breaks the extended supersymmetry down to N=1. The bulk theory has two vacua; at $beta=0$ the BPS-saturated domain wall interpolating between
them has a moduli space parameterized by a U(1) phase $sigma$ which can
be promoted to a scalar field in the effective low-energy theory on the
wall world-volume. At small nonvanishing $beta$ this field gets a
sine-Gordon potential. As a result, only two discrete degenerate BPS

Collection/Series:
Scientific Areas:

## Quantum Simulations of Quantum and Classical Systems

Monday Jan 22, 2007
Speaker(s):

If a large quantum computer (QC) existed today, what type of physical problems could we efficiently simulate on it that we could not simulate on a conventional computer? In this talk, I argue that a QC could solve some relevant physical "questions" more efficiently. First, I will focus on the quantum simulation of quantum systems satisfying different particle statistics (e.g., anyons), using a QC made of two-level physical systems or qubits.

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## An Information-Theoretic Approach to Quantum Theory

Monday Jan 22, 2007
Speaker(s):

The mathematical formalism of quantum theory has many features whose physical origin remains obscure. In this paper, we attempt to systematically investigate the possibility that the concept of information may play a key role in understanding some of these features. We formulate a set of assumptions, based on generalizations of experimental facts that are representative of quantum phenomena and physically comprehensible theoretical ideas and principles, and show that it is possible to deduce the finite-dimensional quantum formalism from these assumptions.

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## Lectures On-Demand

Watch on Perimeter's

## LECTURES ON-DEMAND

### Gabriela González, Louisiana State University

Speaker: Gabriela Gonzalez