Search Talks

Search results from PIRSA

10969 - 10980 of 16831 Results

Quantum Theory - Lecture 14

Joseph Emerson Institute for Quantum Computing (IQC)

September 27, 2012

PIRSA:12090017
New Observations about the Renormalization Group Flow

Zohar Komargodski Stony Brook University
September 26, 2012

PIRSA:12090058
High Energy Physics
Relativity - Lecture 13

Michael Duff Imperial College London

September 26, 2012

PIRSA:12090035
Probability and Statistics with Prof David Spiegelhalter - Lecture 8

September 26, 2012

PIRSA:12090081
Quantum Theory - Lecture 13

Joseph Emerson Institute for Quantum Computing (IQC)

September 26, 2012

PIRSA:12090016
Large-N Collective Fields and de Sitter / CFT correspondence

Sumit Das University of Kentucky
September 25, 2012

PIRSA:12090045
General Relativity & Quantum Cosmology

High Energy Physics
Supermassive black holes in non-spherical galactic nuclei and enhanced rates of star capture events

Eugene Vasiliev Rochester Institute of Technology
September 25, 2012

PIRSA:12090064
Astrophysics
Relativity - Lecture 12

Michael Duff Imperial College London

September 25, 2012

PIRSA:12090034
Quantum Theory - Lecture 12

Joseph Emerson Institute for Quantum Computing (IQC)

September 25, 2012

PIRSA:12090015
Probability and Statistics with Prof David Spiegelhalter - Lecture 7

September 25, 2012

PIRSA:12090080
A generalization of Kochen-Specker sets

Laura Mancinska Institute for Quantum Computing (IQC)

September 24, 2012

PIRSA:12090073
Relativity - Lecture 11

Michael Duff Imperial College London

September 24, 2012

PIRSA:12090033

Quantum Theory - Lecture 14

Joseph Emerson Institute for Quantum Computing (IQC)

September 27, 2012

PIRSA:12090017
New Observations about the Renormalization Group Flow

Zohar Komargodski Stony Brook University
September 26, 2012

PIRSA:12090058
High Energy Physics
We review recent breakthroughs in understanding some general features of the Renormalization Group and of Quantum Field Theory. We discuss some applications of these new results and their deep connection to the entanglement of the Quantum Field Theory vacuum.
Relativity - Lecture 13

Michael Duff Imperial College London

September 26, 2012

PIRSA:12090035
Probability and Statistics with Prof David Spiegelhalter - Lecture 8

September 26, 2012

PIRSA:12090081
Quantum Theory - Lecture 13

Joseph Emerson Institute for Quantum Computing (IQC)

September 26, 2012

PIRSA:12090016
Large-N Collective Fields and de Sitter / CFT correspondence

Sumit Das University of Kentucky
September 25, 2012

PIRSA:12090045
General Relativity & Quantum Cosmology

High Energy Physics
We derive the collective theory of singlet fields of large-N Sp(N) spin models and display its unconventional features. Using the known relationship between O(N) collective fields and higher spin fields of Vasiliev theory in AdS space, we argue that the unique features of the Sp(N) collective theory suggest an interpretation in terms of a higher spin theory in de Sitter space, as proposed by Anninos, Hartman and Strominger. This is reminiscent of the way the Liouville mode is naturally interpreted as time in supercritical worldsheet string theory.
Supermassive black holes in non-spherical galactic nuclei and enhanced rates of star capture events

Eugene Vasiliev Rochester Institute of Technology
September 25, 2012

PIRSA:12090064
Astrophysics
We consider the stellar-dynamical processes which lead to the capture or tidal disruption of stars by a supermassive black hole, review the standard theory of two-body relaxation and loss-cone repopulation in spherical galactic nuclei, and extend it to the axisymmetric and triaxial nuclear star clusters. In the absense of symmetry which conserves angular momentum, the orbits of stars experience regular or chaotic changes of angular momentum even in the smooth potential of star cluster, which creates a substantial population of "centrophilic" orbits. We discuss the loss cone draining rates, i.e. rates of capture of stars from these orbits. Next we consider the relaxation phenomena in non-spherical nuclei, focusing on the differences between spherical, axisymmetric and triaxial cases. It turns out that the rates of repopulation of the loss cone are moderately higher in non-spherical systems, but in the triaxial case an additional, often substantial, increase of capture rates comes from draining of the centrophilic orbit population.
Relativity - Lecture 12

Michael Duff Imperial College London

September 25, 2012

PIRSA:12090034
Quantum Theory - Lecture 12

Joseph Emerson Institute for Quantum Computing (IQC)

September 25, 2012

PIRSA:12090015
Probability and Statistics with Prof David Spiegelhalter - Lecture 7

September 25, 2012

PIRSA:12090080

We shall follow the growth of probability theory and applications from the 1650s onwards, in parallel with the development of statistical inference. Bayesian, Neyman-Pearson hypothesis testing and Fisherian likelihood methods will all be covered, with an emphasis on relating theory to a wide range of applications. Practical sessions will use SciPy and feature closed-form solutions, iterative and Monte Carlo simulation methods.
A generalization of Kochen-Specker sets

Laura Mancinska Institute for Quantum Computing (IQC)

September 24, 2012

PIRSA:12090073

I will discuss two generalizations of Kochen-Specker (KS) sets: projective KS sets and generalized KS sets. We will see that projective KS sets can be used to characterize all graphs for which the chromatic number is strictly larger than the quantum chromatic number. Here, the quantum chromatic number is defined via a nonlocal game based on graph coloring. We will further show that from any graph with separation between these two quantities, one can construct a classical channel for which entanglement assistance increases the one-shot zero-error capacity. As an example, we will consider a new family of classical channels with an exponential increase.
Relativity - Lecture 11

Michael Duff Imperial College London

September 24, 2012

PIRSA:12090033

Title	Date	Collection	Type	Info
Quantum Theory - Lecture 14	2012‑09‑27	12/13 PSI - Quantum Theory	Course	View details
New Observations about the Renormalization Group Flow	2012‑09‑26	Colloquium	Scientific Series	View details
Relativity - Lecture 13	2012‑09‑26	12/13 PSI - Relativity	Course	View details
Probability and Statistics with Prof David Spiegelhalter - Lecture 8	2012‑09‑26	Probability and Statistics	Course	View details
Quantum Theory - Lecture 13	2012‑09‑26	12/13 PSI - Quantum Theory	Course	View details
Large-N Collective Fields and de Sitter / CFT correspondence	2012‑09‑25	Quantum Fields and Strings	Scientific Series	View details
Supermassive black holes in non-spherical galactic nuclei and enhanced rates of star capture events	2012‑09‑25	Cosmology and Gravitation	Scientific Series	View details
Relativity - Lecture 12	2012‑09‑25	12/13 PSI - Relativity	Course	View details
Quantum Theory - Lecture 12	2012‑09‑25	12/13 PSI - Quantum Theory	Course	View details
Probability and Statistics with Prof David Spiegelhalter - Lecture 7	2012‑09‑25	Probability and Statistics	Course	View details
A generalization of Kochen-Specker sets	2012‑09‑24	Perimeter Institute Quantum Discussions	Scientific Series	View details
Relativity - Lecture 11	2012‑09‑24	12/13 PSI - Relativity	Course	View details

Supported by

Format results

Quantum Theory - Lecture 14

New Observations about the Renormalization Group Flow

Relativity - Lecture 13

Probability and Statistics with Prof David Spiegelhalter - Lecture 8

Quantum Theory - Lecture 13

Large-N Collective Fields and de Sitter / CFT correspondence

Supermassive black holes in non-spherical galactic nuclei and enhanced rates of star capture events

Relativity - Lecture 12

Quantum Theory - Lecture 12

Probability and Statistics with Prof David Spiegelhalter - Lecture 7

A generalization of Kochen-Specker sets

Relativity - Lecture 11

Quantum Theory - Lecture 14

New Observations about the Renormalization Group Flow

Relativity - Lecture 13

Probability and Statistics with Prof David Spiegelhalter - Lecture 8

Quantum Theory - Lecture 13

Large-N Collective Fields and de Sitter / CFT correspondence

Supermassive black holes in non-spherical galactic nuclei and enhanced rates of star capture events

Relativity - Lecture 12

Quantum Theory - Lecture 12

Probability and Statistics with Prof David Spiegelhalter - Lecture 7

A generalization of Kochen-Specker sets

Relativity - Lecture 11