Talks

15577 - 15588 of 17809 Results

Advanced Topics in Cosmology

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

May 03, 2007

PIRSA:07050009
High Energy Neutrinos from the Sky and Through the Earth

Kate Scholberg Duke University

May 02, 2007

PIRSA:07050000
Cusp Anomaly, Integrability and ADS/CFT

Sergio Benvenuti Princeton University

May 01, 2007

PIRSA:07050001

High Energy Physics
A Hamiltonian framework for cosmological perturbations to any order

Bianca Dittrich Perimeter Institute for Theoretical Physics

May 01, 2007

PIRSA:07050019

General Relativity & Quantum Cosmology
Advanced Topics in Cosmology 2B

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

April 26, 2007

PIRSA:07040027
Advanced Topics in Cosmology

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

April 26, 2007

PIRSA:07040024
Cryptographic Protocols in a Quantum World

Adam Brown Stanford University

April 25, 2007

PIRSA:07040029

Quantum Physics
Challenges of Explaining Cosmic Acceleration Through Modified Gravity

April 25, 2007

PIRSA:07040011

Astrophysics
Comments on Holographic QCD

Andrei Parnachev Stony Brook University

April 24, 2007

PIRSA:07040021

High Energy Physics
DARK ENERGY AS A CURVATURE EFFECT IN NON-LINEAR THORIES OF GRAVITATION

April 24, 2007

PIRSA:07040028

Astrophysics
Advanced Topics in Cosmology 1B

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

April 19, 2007

PIRSA:07040026
Advanced Topics in Cosmology

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

April 19, 2007

PIRSA:07040023

Advanced Topics in Cosmology

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

May 03, 2007

PIRSA:07050009

Class 3
High Energy Neutrinos from the Sky and Through the Earth

Kate Scholberg Duke University

May 02, 2007

PIRSA:07050000

The progress in neutrino physics over the past ten years has been tremendous: we have learned that neutrinos have mass and change flavor. I will pick out one of the threads of the story-- the measurement of flavor oscillation in neutrinos produced by cosmic ray showers in the atmosphere, and its confirmation in long distance beam experiments. I will present the history, the current state of knowledge, and how the next generation of high intensity beam experiments will address some of the remaining puzzles.
Cusp Anomaly, Integrability and ADS/CFT

Sergio Benvenuti Princeton University

May 01, 2007

PIRSA:07050001

High Energy Physics

TBA
A Hamiltonian framework for cosmological perturbations to any order

Bianca Dittrich Perimeter Institute for Theoretical Physics

May 01, 2007

PIRSA:07050019

General Relativity & Quantum Cosmology

We introduce a framework that allows to calculate cosmological perturbations in a gauge invariant manner to any order. The two main features of this framework are to take physical observables as basic objects and to treat the variables describing the background geometry as fully dynamical. Backreaction effects can therefore naturally adressed. At the end I will mention applications to Loop Quantum Cosmology.
Advanced Topics in Cosmology 2B

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

April 26, 2007

PIRSA:07040027

Class 2 part 2
Advanced Topics in Cosmology

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

April 26, 2007

PIRSA:07040024

Class 2
Cryptographic Protocols in a Quantum World

Adam Brown Stanford University

April 25, 2007

PIRSA:07040029

Quantum Physics

I will survey recent feasibility results on building multi-party cryptographic protocols which manipulate quantum data or are secure against quantum adversaries. The focus will be protocols for secure evaluation of quantum circuits. Along the way, I'll discuss how quantum machines can (and can't) prove knowledge of a secret to a distrustful partner. The talk is based on recent unpublished results, as well as older joint work with subsets of Michael Ben-Or, Claude Crepeau, Daniel Gottesman, and Avinatan Hasidim (STOC '02, FOCS '02, Eurocrypt '05, FOCS '06).
Challenges of Explaining Cosmic Acceleration Through Modified Gravity

April 25, 2007

PIRSA:07040011

Astrophysics

Among the possible explanations for the observed acceleration of the universe, perhaps the boldest is the idea that new gravitational physics might be the culprit. In this colloquium I will discuss some of the challenges of constructing a sensible phenomenological extension of General Relativity, give examples of some candidate models of modified gravity and survey existing observational constraints on this approach. I will conclude by discussing how we might hope to distinguish between modifications of General Relativity and dark energy as competing hypotheses to explain cosmic acceleration.
Comments on Holographic QCD

Andrei Parnachev Stony Brook University

April 24, 2007

PIRSA:07040021

High Energy Physics

TBA
DARK ENERGY AS A CURVATURE EFFECT IN NON-LINEAR THORIES OF GRAVITATION

April 24, 2007

PIRSA:07040028

Astrophysics

Dark matter and dark energy can be explained without resorting to exotic fields if one accepts that the geometry of spacetime is governed by suitable generalized gravitational theories based on Lagrangians that are non-linear in the curvature of a metric and/or a torsionless linear connection, i.e. in second order and first order formalisms. A convenient choice of nonquadratic Lagrangians can fit well most of the astrophysical, cosmological and solar system requirements imposed by experimental results, without drastic modifications of Einstein field equations and with FRW Cosmologies preserved as a good approximation of Nature at a global scale.
Advanced Topics in Cosmology 1B

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

April 19, 2007

PIRSA:07040026

Class 1 part 2
Advanced Topics in Cosmology

Viatcheslav Mukhanov Ludwig-Maximilians-Universitiät München (LMU)

April 19, 2007

PIRSA:07040023

Class 1

Title	Date	Collection	Type	Info
Advanced Topics in Cosmology	2007‑05‑03	Advanced Topics in Cosmology mini-course 2007	Course	View details
High Energy Neutrinos from the Sky and Through the Earth	2007‑05‑02	Colloquium	Scientific Series	View details
Cusp Anomaly, Integrability and ADS/CFT	2007‑05‑01	Quantum Fields and Strings	Scientific Series	View details
A Hamiltonian framework for cosmological perturbations to any order	2007‑05‑01	Cosmology and Gravitation	Scientific Series	View details
Advanced Topics in Cosmology 2B	2007‑04‑26	Advanced Topics in Cosmology mini-course 2007	Course	View details
Advanced Topics in Cosmology	2007‑04‑26	Advanced Topics in Cosmology mini-course 2007	Course	View details
Cryptographic Protocols in a Quantum World	2007‑04‑25	Perimeter Institute Quantum Discussions	Scientific Series	View details
Challenges of Explaining Cosmic Acceleration Through Modified Gravity	2007‑04‑25	Colloquium	Scientific Series	View details
Comments on Holographic QCD	2007‑04‑24	Quantum Fields and Strings	Scientific Series	View details
DARK ENERGY AS A CURVATURE EFFECT IN NON-LINEAR THORIES OF GRAVITATION	2007‑04‑24	Cosmology and Gravitation	Scientific Series	View details
Advanced Topics in Cosmology 1B	2007‑04‑19	Advanced Topics in Cosmology mini-course 2007	Course	View details
Advanced Topics in Cosmology	2007‑04‑19	Advanced Topics in Cosmology mini-course 2007	Course	View details

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Format results

Advanced Topics in Cosmology

High Energy Neutrinos from the Sky and Through the Earth

Cusp Anomaly, Integrability and ADS/CFT

A Hamiltonian framework for cosmological perturbations to any order

Advanced Topics in Cosmology 2B

Advanced Topics in Cosmology

Cryptographic Protocols in a Quantum World

Challenges of Explaining Cosmic Acceleration Through Modified Gravity

Comments on Holographic QCD

DARK ENERGY AS A CURVATURE EFFECT IN NON-LINEAR THORIES OF GRAVITATION

Advanced Topics in Cosmology 1B

Advanced Topics in Cosmology

Advanced Topics in Cosmology

High Energy Neutrinos from the Sky and Through the Earth

Cusp Anomaly, Integrability and ADS/CFT

A Hamiltonian framework for cosmological perturbations to any order

Advanced Topics in Cosmology 2B

Advanced Topics in Cosmology

Cryptographic Protocols in a Quantum World

Challenges of Explaining Cosmic Acceleration Through Modified Gravity

Comments on Holographic QCD

DARK ENERGY AS A CURVATURE EFFECT IN NON-LINEAR THORIES OF GRAVITATION

Advanced Topics in Cosmology 1B

Advanced Topics in Cosmology