Talks

12805 - 12816 of 20118 Results

Rethinking Cosmology

March 06, 2013

PIRSA:13030079

Astrophysics
12/13 PSI - Cosmology Review Lecture 12

Latham Boyle University of Edinburgh

March 06, 2013

PIRSA:13030043

Astrophysics
12/13 PSI - Quantum Information Review Lecture 12

Andrew Childs University of Waterloo

March 06, 2013

PIRSA:13030051

Quantum Physics
Non-perturbative problems in gauge theories: N=2 quiver QCD

Vasily Pestun Institute for Advanced Study (IAS)

March 06, 2013

PIRSA:13030103

High Energy Physics
12/13 PSI - Beyond the Standard Model Lecture 12

Itay Yavin McMaster University

Natalia Toro Stanford University

March 06, 2013

PIRSA:13030035

High Energy Physics
Advanced General Relativity - Lecture 13

Rafael Sorkin Perimeter Institute for Theoretical Physics

March 05, 2013

PIRSA:13030006
Thermodynamical Property of Entanglement Entropy for Excited States and Holographic Local Quench

Masahiro Nozaki University of Chicago

March 05, 2013

PIRSA:13030081

High Energy Physics
The correlator of two vector and one axial current in QCD

Kirill Melnikov Johns Hopkins University

March 05, 2013

PIRSA:13030099

High Energy Physics
12/13 PSI - Cosmology Review Lecture 11

Latham Boyle University of Edinburgh

March 05, 2013

PIRSA:13030042

Astrophysics
12/13 PSI - Quantum Information Review Lecture 11

Andrew Childs University of Waterloo

March 05, 2013

PIRSA:13030050

Quantum Physics
12/13 PSI - Beyond the Standard Model Lecture 11

Itay Yavin McMaster University

Natalia Toro Stanford University

March 05, 2013

PIRSA:13030034

High Energy Physics
Getting the Most out of a Black Hole

Alexander Tchekhovskoy Princeton University

March 04, 2013

PIRSA:13030102

Astrophysics

Rethinking Cosmology

March 06, 2013

PIRSA:13030079

Astrophysics

This talk will begin by discussing one by one the various reasons why cosmologists today consider the big bang inflationary cosmology to be the leading, if not proven, theory of the universe and then explaining why each of these reasons is flawed. This leads naturally to the question: what is the alternative? Understanding the flaws helps point the way.
12/13 PSI - Cosmology Review Lecture 12

Latham Boyle University of Edinburgh

March 06, 2013

PIRSA:13030043

Astrophysics
12/13 PSI - Quantum Information Review Lecture 12

Andrew Childs University of Waterloo

March 06, 2013

PIRSA:13030051

Quantum Physics
Non-perturbative problems in gauge theories: N=2 quiver QCD

Vasily Pestun Institute for Advanced Study (IAS)

March 06, 2013

PIRSA:13030103

High Energy Physics

Non-perturbative effects are responsible for the essential dynamical features of the four-dimensional gauge theories such as QCD. The N=2 supersymmetric four-dimensional theories are an interesting class of models in which non-perturbative computations can be carried out with arbitrary precision using localization of the path integrals. I will explain the new exact non-perturbative results and the relation to classical and quantum integrable systems for a large class of N=2 supersymmetric QCD.
12/13 PSI - Beyond the Standard Model Lecture 12

Itay Yavin McMaster University

Natalia Toro Stanford University

March 06, 2013

PIRSA:13030035

High Energy Physics
Advanced General Relativity - Lecture 13

Rafael Sorkin Perimeter Institute for Theoretical Physics

March 05, 2013

PIRSA:13030006
Thermodynamical Property of Entanglement Entropy for Excited States and Holographic Local Quench

Masahiro Nozaki University of Chicago

March 05, 2013

PIRSA:13030081

High Energy Physics

In this talk, we will describe our recent work. Recently, we focus on the thermodynamical property and time dependence of entanglement entropy. Using holography, we found that the entanglement entropy for a very small subsystem obeys a property which is analogous to the first law of thermodynamics when we excite the system. In relativistic setups, its effective temperature is proportional to the inverse of the subsystem size. This provides a universal relationship between the energy and the amount of quantum information. Moreover, we will propose a new holographic model of local quench and describe some results which we got by using this model. This talk is based on arXiv:1212.1164 [hep-th] and arXiv:1302.5703 [hep-th].
The correlator of two vector and one axial current in QCD

Kirill Melnikov Johns Hopkins University

March 05, 2013

PIRSA:13030099

High Energy Physics

It is known that the correlator of one axial and two vector currents, that receives leading contributions through one-loop fermion triangle diagrams, is not modified by QCD radiative corrections at two loops. It was suggested that this non-renormalization of the VVA correlator persists in higher orders in perturbative QCD as well. To check this assertion, I compute the three-loop QCD corrections to the VAA-correlator using the technique of asymptotic expansions. I find that these corrections do not vanish and that they are proportional to the QCD beta-function. I will also review some properties of the VVA correlator that were discovered in recent years.
12/13 PSI - Cosmology Review Lecture 11

Latham Boyle University of Edinburgh

March 05, 2013

PIRSA:13030042

Astrophysics
12/13 PSI - Quantum Information Review Lecture 11

Andrew Childs University of Waterloo

March 05, 2013

PIRSA:13030050

Quantum Physics
12/13 PSI - Beyond the Standard Model Lecture 11

Itay Yavin McMaster University

Natalia Toro Stanford University

March 05, 2013

PIRSA:13030034

High Energy Physics
Getting the Most out of a Black Hole

Alexander Tchekhovskoy Princeton University

March 04, 2013

PIRSA:13030102

Astrophysics

As black holes accrete surrounding gas, they often produce relativistic, collimated outflows, or jets. Jets are expected to form in the black hole vicinity making them powerful probes of strong-field gravity. However, how jet properties are connected to black hole and accretion flow properties has been unclear. Recent progress in computer simulations of black hole accretion enables studies of jet formation in unprecedented detail. For the first time, 3D general relativistic magnetohydrodynamic numerical simulations allow one to determine the maximum efficiency with which accretion onto black holes can power relativistic jets. I will present the dependence of this maximum efficiency on black hole spin and discuss how this dependence allows one to probe strong-field gravity. In realistic astrophysical systems, the angular momentum vector of the accretion flow can be tilted relative to the spin of the black hole. I will present the first simulations of jets from such tilted accretion systems and discuss their observational signatures.

Title	Date	Collection	Type	Info
Rethinking Cosmology	2013‑03‑06	Colloquium	Scientific Series	View details
12/13 PSI - Cosmology Review Lecture 12	2013‑03‑06	12/13 PSI - Cosmology Review	Course	View details
12/13 PSI - Quantum Information Review Lecture 12	2013‑03‑06	12/13 PSI - Quantum Information Review	Course	View details
Non-perturbative problems in gauge theories: N=2 quiver QCD	2013‑03‑06	Colloquium	Scientific Series	View details
12/13 PSI - Beyond the Standard Model Lecture 12	2013‑03‑06	12/13 PSI - Beyond the Standard Model	Course	View details
Advanced General Relativity - Lecture 13	2013‑03‑05	Elements of General Relativity	Course	View details
Thermodynamical Property of Entanglement Entropy for Excited States and Holographic Local Quench	2013‑03‑05	Quantum Fields and Strings	Scientific Series	View details
The correlator of two vector and one axial current in QCD	2013‑03‑05	Particle Physics	Scientific Series	View details
12/13 PSI - Cosmology Review Lecture 11	2013‑03‑05	12/13 PSI - Cosmology Review	Course	View details
12/13 PSI - Quantum Information Review Lecture 11	2013‑03‑05	12/13 PSI - Quantum Information Review	Course	View details
12/13 PSI - Beyond the Standard Model Lecture 11	2013‑03‑05	12/13 PSI - Beyond the Standard Model	Course	View details
Getting the Most out of a Black Hole	2013‑03‑04	Colloquium	Scientific Series	View details

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Format results

Rethinking Cosmology

12/13 PSI - Cosmology Review Lecture 12

12/13 PSI - Quantum Information Review Lecture 12

Non-perturbative problems in gauge theories: N=2 quiver QCD

12/13 PSI - Beyond the Standard Model Lecture 12

Advanced General Relativity - Lecture 13

Thermodynamical Property of Entanglement Entropy for Excited States and Holographic Local Quench

The correlator of two vector and one axial current in QCD

12/13 PSI - Cosmology Review Lecture 11

12/13 PSI - Quantum Information Review Lecture 11

12/13 PSI - Beyond the Standard Model Lecture 11

Getting the Most out of a Black Hole

Rethinking Cosmology

12/13 PSI - Cosmology Review Lecture 12

12/13 PSI - Quantum Information Review Lecture 12

Non-perturbative problems in gauge theories: N=2 quiver QCD

12/13 PSI - Beyond the Standard Model Lecture 12

Advanced General Relativity - Lecture 13

Thermodynamical Property of Entanglement Entropy for Excited States and Holographic Local Quench

The correlator of two vector and one axial current in QCD

12/13 PSI - Cosmology Review Lecture 11

12/13 PSI - Quantum Information Review Lecture 11

12/13 PSI - Beyond the Standard Model Lecture 11

Getting the Most out of a Black Hole