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Homogeneous and Isotropic Universe from Nonlinear Massive Gravity

A. Emir Gumrukcuoglu
October 02, 2012

PIRSA:12100002
Cosmology
Probability and Statistics with Prof David Spiegelhalter - Lecture 12

October 02, 2012

PIRSA:12100135
Probability and Statistics with Prof David Spiegelhalter - Lecture 11

October 01, 2012

PIRSA:12100134
Relativity - Lecture 15

Michael Duff Imperial College London

September 28, 2012

PIRSA:12090037
Quantum Theory - Lecture 15

Joseph Emerson Institute for Quantum Computing (IQC)

September 28, 2012

PIRSA:12090018
Probability and Statistics with Prof David Spiegelhalter - Lecture 10

September 28, 2012

PIRSA:12090083
Relativity - Lecture 14

Michael Duff Imperial College London

September 27, 2012

PIRSA:12090036
Probability and Statistics with Prof David Spiegelhalter - Lecture 9

September 27, 2012

PIRSA:12090082
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
Quantum Fields and Strings
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

Homogeneous and Isotropic Universe from Nonlinear Massive Gravity

A. Emir Gumrukcuoglu
October 02, 2012

PIRSA:12100002
Cosmology
The question of finite range gravity, or equivalently, whether graviton can have a non-zero mass, has been one of the major challenges in classical field theory for the last 70 years. Generically, a massive gravity theory contains an extra degree in addition to the 5 polarizations of massive graviton, which turns out to be a ghost. Recently, de Rham, Gabadadze and Tolley constructed a nonlinear theory of massive gravity, which successfully eliminates the ghost. Moreover, the theory has also phenomenological relevance, since the graviton mass may account for the accelerated expansion of the present universe, providing an alternative to dark energy. I will present self-accelerating cosmological solutions in the framework of this theory. The cosmological perturbations around these backgrounds have an interesting behavior: instead of the 5 degrees of freedom expected from a massive spin-2 field, only the 2 gravity wave polarizations are dynamical, at linear level. However, nonlinear analysis of the extra modes reveal the existence of ghost instabilities. This implies that a consistent universe solution in this theory should be inhomogeneous and/or anisotropic.
Probability and Statistics with Prof David Spiegelhalter - Lecture 12

October 02, 2012

PIRSA:12100135

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.
Probability and Statistics with Prof David Spiegelhalter - Lecture 11

October 01, 2012

PIRSA:12100134

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.
Relativity - Lecture 15

Michael Duff Imperial College London

September 28, 2012

PIRSA:12090037
Quantum Theory - Lecture 15

Joseph Emerson Institute for Quantum Computing (IQC)

September 28, 2012

PIRSA:12090018
Probability and Statistics with Prof David Spiegelhalter - Lecture 10

September 28, 2012

PIRSA:12090083
Relativity - Lecture 14

Michael Duff Imperial College London

September 27, 2012

PIRSA:12090036
Probability and Statistics with Prof David Spiegelhalter - Lecture 9

September 27, 2012

PIRSA:12090082

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.
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
Quantum Fields and Strings
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

Title	Date	Collection	Type	Info
Homogeneous and Isotropic Universe from Nonlinear Massive Gravity	2012‑10‑02	Cosmology and Gravitation	Scientific Series	View details
Probability and Statistics with Prof David Spiegelhalter - Lecture 12	2012‑10‑02	Probability and Statistics	Course	View details
Probability and Statistics with Prof David Spiegelhalter - Lecture 11	2012‑10‑01	Probability and Statistics	Course	View details
Relativity - Lecture 15	2012‑09‑28	12/13 PSI - Relativity	Course	View details
Quantum Theory - Lecture 15	2012‑09‑28	12/13 PSI - Quantum Theory	Course	View details
Probability and Statistics with Prof David Spiegelhalter - Lecture 10	2012‑09‑28	Probability and Statistics	Course	View details
Relativity - Lecture 14	2012‑09‑27	12/13 PSI - Relativity	Course	View details
Probability and Statistics with Prof David Spiegelhalter - Lecture 9	2012‑09‑27	Probability and Statistics	Course	View details
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

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