Talks

9553 - 9564 of 18100 Results

13/14 PSI - Explorations in String Theory - Lecture 10

Andrei Starinets University of Oxford

March 28, 2014

PIRSA:14030070
Effective field theory for hydrodynamical systems

Alberto Nicolis Columbia University

March 28, 2014

PIRSA:14030121

High Energy Physics

Astrophysics
13/14 PSI - Explorations in Condensed Matter - Lecture 10

Guifre Vidal Alphabet (United States)

March 28, 2014

PIRSA:14040036
Introduction to Effective Field Theories - Lecture 19

Cliff Burgess McMaster University

March 28, 2014

PIRSA:14030076
Introduction to Quantum Field Theory for Cosmology - Lecture 22

Achim Kempf University of Waterloo

March 27, 2014

PIRSA:14030006
Possible Astrophysical Observables of Quantum Gravity Effects near Black Holes

Ue-Li Pen Canadian Institute for Theoretical Astrophysics (CITA)

March 27, 2014

PIRSA:14030115

General Relativity & Quantum Cosmology
13/14 PSI - Explorations in Quantum Information - Lecture 10

David Cory Institute for Quantum Computing (IQC)

March 27, 2014

PIRSA:14030040
Bungee jumping of black holes in AdS universe

March 27, 2014

PIRSA:14030108

General Relativity & Quantum Cosmology
13/14 PSI - Explorations in String Theory - Lecture 9

Andrei Starinets University of Oxford

March 27, 2014

PIRSA:14030069
13/14 PSI - Explorations in Condensed Matter - Lecture 9

Guifre Vidal Alphabet (United States)

March 27, 2014

PIRSA:14040032
13/14 PSI - Explorations in Quantum Information - Lecture 9

David Cory Institute for Quantum Computing (IQC)

March 27, 2014

PIRSA:14030039
The invasion of physics by information theory

Robert Spekkens Perimeter Institute for Theoretical Physics

March 26, 2014

PIRSA:14030085

Quantum Physics

13/14 PSI - Explorations in String Theory - Lecture 10

Andrei Starinets University of Oxford

March 28, 2014

PIRSA:14030070
Effective field theory for hydrodynamical systems

Alberto Nicolis Columbia University

March 28, 2014

PIRSA:14030121

High Energy Physics

Astrophysics

I will review a recently proposed formalism that describes fluids and superfluids in effective field theory terms. I will then focus on applying this formalism to peculiar string-like objects that exist in fluid systems: vortex lines and vortex rings. These do not obey Newton's second law, and, as a consequence, their behavior is highly counterintuitive. I will describe how effective field theory provides us with an optimal tool to understand how they move and how they interact with one another and with sound.
13/14 PSI - Explorations in Condensed Matter - Lecture 10

Guifre Vidal Alphabet (United States)

March 28, 2014

PIRSA:14040036
Introduction to Effective Field Theories - Lecture 19

Cliff Burgess McMaster University

March 28, 2014

PIRSA:14030076
Introduction to Quantum Field Theory for Cosmology - Lecture 22

Achim Kempf University of Waterloo

March 27, 2014

PIRSA:14030006
Possible Astrophysical Observables of Quantum Gravity Effects near Black Holes

Ue-Li Pen Canadian Institute for Theoretical Astrophysics (CITA)

March 27, 2014

PIRSA:14030115

General Relativity & Quantum Cosmology

Recent implications of results from quantum information theory applied to black holes has led to the confusing conclusions that requires either abandoning the equivalence principle (e.g. the firewall picture), or the no-hair theorem (e.g. the fuzzball picture), or even more unpalatable options. The recent discovery of a pulsar orbiting a black hole opens up new possibilities for tests of theories of gravity. We examine possible observational effects of semiclassical quantum gravity in the vicinity of black holes, as probed by pulsars and event horizon telescope imaging of flares. Pulsar radiation is observable at wavelengths only two orders of magnitude shorter than the Hawking radiation, so precision interferometry of lensed pulsar images may shed light on the quantum gravitational processes and interaction of Hawking radiation with the spacetime near the black hole. This paper discusses the impact on the pulsar radiation interference pattern, which is observable through the modulation index in the foreseeable future, and discusses a possible classical limit of BHC.
13/14 PSI - Explorations in Quantum Information - Lecture 10

David Cory Institute for Quantum Computing (IQC)

March 27, 2014

PIRSA:14030040
Bungee jumping of black holes in AdS universe

March 27, 2014

PIRSA:14030108

General Relativity & Quantum Cosmology

C-metric describes uniformly accelerated black holes. We will review a global structure of these solutions especially in Lambda<0 context. It turns out that for an acceleration larger than the cosmological one the metric describes pairs of black holes "bungee jumping" into spacetime from AdS infinity.
13/14 PSI - Explorations in String Theory - Lecture 9

Andrei Starinets University of Oxford

March 27, 2014

PIRSA:14030069
13/14 PSI - Explorations in Condensed Matter - Lecture 9

Guifre Vidal Alphabet (United States)

March 27, 2014

PIRSA:14040032
13/14 PSI - Explorations in Quantum Information - Lecture 9

David Cory Institute for Quantum Computing (IQC)

March 27, 2014

PIRSA:14030039
The invasion of physics by information theory

Robert Spekkens Perimeter Institute for Theoretical Physics

March 26, 2014

PIRSA:14030085

Quantum Physics

When we think of a revolution in physics, we usually think of a physical theory that manages to overthrow its predecessor. There is another kind of revolution, however, that typically happens more slowly but that is often the key to achieving the first sort: it is the discovery of a novel perspective on an existing physical theory. The use of least-action principles, symmetry principles, and thermodynamic principles are good historical examples. It turns out that we can refine our understanding of many of these principles by characterizing certain properties of physical states as resources. I will discuss some of the highlights of two resource theories: the resource theory of asymmetry, which characterizes the relations among quantum states that break a symmetry; and the resource theory of athermality, which characterizes the relations among quantum states that deviate from thermal equilibrium. In particular, I will discuss how Noether's theorem does not capture all of the consequences of symmetries of the dynamics, and how the second law of thermodynamics does not capture all of the constraints on thermodynamic transitions. Finally, I will show that both asymmetry and athermality are informational resources, and that rehabilitated versions of Noether's theorem and the second law can both be understood as constraints on data processing. Considerations such as these---as well as evidence from other fronts of the invasion---make a compelling case for the revolutionary cause of reconceiving physics from an information-theoretic perspective.

Title	Date	Collection	Type	Info
13/14 PSI - Explorations in String Theory - Lecture 10	2014‑03‑28	13/14 PSI - Explorations in String Theory	Course	View details
Effective field theory for hydrodynamical systems	2014‑03‑28	Colloquium	Scientific Series	View details
13/14 PSI - Explorations in Condensed Matter - Lecture 10	2014‑03‑28	13/14 PSI - Explorations in Condensed Matter	Course	View details
Introduction to Effective Field Theories - Lecture 19	2014‑03‑28	Introduction to Effective Field Theories	Course	View details
Introduction to Quantum Field Theory for Cosmology - Lecture 22	2014‑03‑27	Quantum Field Theory for Cosmology - 2014	Course	View details
Possible Astrophysical Observables of Quantum Gravity Effects near Black Holes	2014‑03‑27	Quantum Gravity	Scientific Series	View details
13/14 PSI - Explorations in Quantum Information - Lecture 10	2014‑03‑27	13/14 PSI - Explorations in Quantum Information	Course	View details
Bungee jumping of black holes in AdS universe	2014‑03‑27	Strong Gravity	Scientific Series	View details
13/14 PSI - Explorations in String Theory - Lecture 9	2014‑03‑27	13/14 PSI - Explorations in String Theory	Course	View details
13/14 PSI - Explorations in Condensed Matter - Lecture 9	2014‑03‑27	13/14 PSI - Explorations in Condensed Matter	Course	View details
13/14 PSI - Explorations in Quantum Information - Lecture 9	2014‑03‑27	13/14 PSI - Explorations in Quantum Information	Course	View details
The invasion of physics by information theory	2014‑03‑26	Colloquium	Scientific Series	View details

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Format results

13/14 PSI - Explorations in String Theory - Lecture 10

Effective field theory for hydrodynamical systems

13/14 PSI - Explorations in Condensed Matter - Lecture 10

Introduction to Effective Field Theories - Lecture 19

Introduction to Quantum Field Theory for Cosmology - Lecture 22

Possible Astrophysical Observables of Quantum Gravity Effects near Black Holes

13/14 PSI - Explorations in Quantum Information - Lecture 10

Bungee jumping of black holes in AdS universe

13/14 PSI - Explorations in String Theory - Lecture 9

13/14 PSI - Explorations in Condensed Matter - Lecture 9

13/14 PSI - Explorations in Quantum Information - Lecture 9

The invasion of physics by information theory

13/14 PSI - Explorations in String Theory - Lecture 10

Effective field theory for hydrodynamical systems

13/14 PSI - Explorations in Condensed Matter - Lecture 10

Introduction to Effective Field Theories - Lecture 19

Introduction to Quantum Field Theory for Cosmology - Lecture 22

Possible Astrophysical Observables of Quantum Gravity Effects near Black Holes

13/14 PSI - Explorations in Quantum Information - Lecture 10

Bungee jumping of black holes in AdS universe

13/14 PSI - Explorations in String Theory - Lecture 9

13/14 PSI - Explorations in Condensed Matter - Lecture 9

13/14 PSI - Explorations in Quantum Information - Lecture 9

The invasion of physics by information theory