Talks

12793 - 12804 of 16353 Results

Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 14

Neil Turok
University of Edinburgh

Parampreet Singh
Louisiana State University

April 22, 2010

PIRSA:10040071
Spin Liquids in Frustrated Magnets

Leon Balents
University of California, Santa Barbara

April 21, 2010

PIRSA:10040037
Quantum Spin Simulations (PHYS 7380) - Lecture 13

April 21, 2010

PIRSA:10040055
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 13

Neil Turok
University of Edinburgh

Parampreet Singh
Louisiana State University

April 21, 2010

PIRSA:10040070
The Holographic Universe

Paul McFadden
Newcastle University

April 20, 2010

PIRSA:10040020

Cosmology
WIMPless Dark Matter and Meson Decays with Missing Energy

David McKeen
University of Washington

April 20, 2010

PIRSA:10040111

Particle Physics
Generation of Perturbations During Inflation

Adrienne Erickcek
University of North Carolina at Chapel Hill

April 20, 2010

PIRSA:10040078
Quantum Spin Simulations (PHYS 7380) - Lecture 12

April 20, 2010

PIRSA:10040054
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 12

Neil Turok
University of Edinburgh

Parampreet Singh
Louisiana State University

April 20, 2010

PIRSA:10040069
Baryogenesis and Leptogenesis

Latham Boyle
University of Edinburgh

April 19, 2010

PIRSA:10040077
Quantum Spin Simulations - Lecture 11

April 19, 2010

PIRSA:10040053
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 11

Neil Turok
University of Edinburgh

Parampreet Singh
Louisiana State University

April 19, 2010

PIRSA:10040068

Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 14

Neil Turok
University of Edinburgh

Parampreet Singh
Louisiana State University

April 22, 2010

PIRSA:10040071

Gauge Invariant Cosmological Perturbation theory from 3+1 formulation of General Relativity. This course will aim to study in detail the 3+1 decomposition in General Relativity and use the formalism to derive Gauge invariant perturbation theory at the linear order. Some applications will be studied.
Spin Liquids in Frustrated Magnets

Leon Balents
University of California, Santa Barbara

April 21, 2010

PIRSA:10040037

Frustrated magnets are materials in which localized magnetic moments, or spins, interact through competing exchange interactions that cannot be simultaneously satisfied, giving rise to a large degeneracy of the system ground state. Under certain conditions, this can lead to the formation of fluid-like states of matter, so-called spin liquids, in which the constituent spins are highly correlated but still fluctuate strongly down to a temperature of absolute zero. The fluctuations of the spins in a spin liquid can be classical or quantum and show remarkable collective phenomena such as emergent gauge fields and fractional particle excitations. This exotic behaviour is now being uncovered in the laboratory, providing insight into the properties of spin liquids and challenges to the theoretical description of these materials.
Quantum Spin Simulations (PHYS 7380) - Lecture 13

April 21, 2010

PIRSA:10040055
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 13

Neil Turok
University of Edinburgh

Parampreet Singh
Louisiana State University

April 21, 2010

PIRSA:10040070
The Holographic Universe

Paul McFadden
Newcastle University

April 20, 2010

PIRSA:10040020

Cosmology

We present a holographic description of four-dimensional single-scalar inflationary universes in terms of a three-dimensional quantum field theory. The holographic description correctly reproduces standard inflationary predictions in their regime of applicability. In the opposite case, wherein gravity is strongly coupled at early times, we propose a holographic description in terms of perturbative QFT and present models capable of satisfying the current observational constraints while exhibiting a phenomenology distinct from standard inflation. This provides a qualitatively new method for generating a nearly scale-invariant spectrum of primordial cosmological perturbations.
WIMPless Dark Matter and Meson Decays with Missing Energy

David McKeen
University of Washington

April 20, 2010

PIRSA:10040111

Particle Physics

WIMPless dark matter offers an attractive framework in which dark matter can be very light. We investigate the implications of such scenarios on invisible decays of bottomonium states for dark matter with a mass less than around $5 {\rm GeV}$. We relate these decays to measurements of nucleon-dark matter elastic scattering. We also investigate the effect that a coupling to $s$ quarks has on flavor changing $b\to s$ processes involving missing energy.
Generation of Perturbations During Inflation

Adrienne Erickcek
University of North Carolina at Chapel Hill

April 20, 2010

PIRSA:10040078

Lecture 4
Quantum Spin Simulations (PHYS 7380) - Lecture 12

April 20, 2010

PIRSA:10040054
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 12

Neil Turok
University of Edinburgh

Parampreet Singh
Louisiana State University

April 20, 2010

PIRSA:10040069

Gauge Invariant Cosmological Perturbation theory from 3+1 formulation of General Relativity. This course will aim to study in detail the 3+1 decomposition in General Relativity and use the formalism to derive Gauge invariant perturbation theory at the linear order. Some applications will be studied.
Baryogenesis and Leptogenesis

Latham Boyle
University of Edinburgh

April 19, 2010

PIRSA:10040077
Quantum Spin Simulations - Lecture 11

April 19, 2010

PIRSA:10040053
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 11

Neil Turok
University of Edinburgh

Parampreet Singh
Louisiana State University

April 19, 2010

PIRSA:10040068

Gauge Invariant Cosmological Perturbation theory from 3+1 formulation of General Relativity. This course will aim to study in detail the 3+1 decomposition in General Relativity and use the formalism to derive Gauge invariant perturbation theory at the linear order. Some applications will be studied.

Title	Date	Collection	Type	Info
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 14	2010‑04‑22	09/10 PSI - Explorations in Cosmology 2	Course	View details
Spin Liquids in Frustrated Magnets	2010‑04‑21	Colloquium	Scientific Series	View details
Quantum Spin Simulations (PHYS 7380) - Lecture 13	2010‑04‑21	09/10 PSI - Quantum Spin Simulations	Course	View details
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 13	2010‑04‑21	09/10 PSI - Explorations in Cosmology 2	Course	View details
The Holographic Universe	2010‑04‑20	Cosmology and Gravitation	Scientific Series	View details
WIMPless Dark Matter and Meson Decays with Missing Energy	2010‑04‑20	Particle Physics	Scientific Series	View details
Generation of Perturbations During Inflation	2010‑04‑20	Cosmology Mini Course	Course	View details
Quantum Spin Simulations (PHYS 7380) - Lecture 12	2010‑04‑20	09/10 PSI - Quantum Spin Simulations	Course	View details
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 12	2010‑04‑20	09/10 PSI - Explorations in Cosmology 2	Course	View details
Baryogenesis and Leptogenesis	2010‑04‑19	Cosmology Mini Course	Course	View details
Quantum Spin Simulations - Lecture 11	2010‑04‑19	09/10 PSI - Quantum Spin Simulations	Course	View details
Explorations in Theoretical Astrophysics (PHYS 7890) - Lecture 11	2010‑04‑19	09/10 PSI - Explorations in Cosmology 2	Course	View details

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