Talks

12301 - 12312 of 19958 Results

13/14 PSI - Algebra - Lecture 1

Anna Kostouki

August 14, 2013

PIRSA:13080009
13/14 PSI- Complex Analysis - Lecture 1

Tibra Ali Perimeter Institute for Theoretical Physics

August 14, 2013

PIRSA:13080002
Orbifold partition function and their phases

Daisuke Yokoyama Seoul National University

August 13, 2013

PIRSA:13080044

High Energy Physics
13/14 PSI - Introductions

August 12, 2013

PIRSA:13080045
13/14 PSI - Welcome

August 12, 2013

PIRSA:13080001
Neutron Stars and the Dense Matter Equation of State

Madappa Prakash Ohio University

August 08, 2013

PIRSA:13080000

General Relativity & Quantum Cosmology
Effective Field Theory of Multi-Field Inflation a la Weinberg

Nima Khosravi Shahid Beheshti University

July 30, 2013

PIRSA:13070091

Astrophysics
Quantum Foundations - 2

David Schroeren University of Oxford

Paolo Bertozzini Thammasat University

Bruno Hartmann

July 26, 2013

PIRSA:13070088
Mixed Session

Valerio Astuti

Seth Major Hamilton College

Michael Reisenberger Universidad de la Republica Uruguay

Jacobo Diaz-Polo

July 26, 2013

PIRSA:13070090
Renormalization - 3

Tobias Henz Universität Heidelberg - Institut für Theoretische Physik

Kevin Falls University of Sussex

Mohamed Anber Canadian Institute for Theoretical Astrophysics (CITA)

July 26, 2013

PIRSA:13070089
Quantum Cosmology - 5

Hector Hernandez Universidad Autonoma de Chihuahua

Edison Montoya Universidad de Antioquia

Matthew Hogan

Francesca Vidotto Western University

July 26, 2013

PIRSA:13070087
Canonical Quantum Gravity and Spin Foams

Antonia Zipfel

Mingyi Zhang Aix-Marseille University

Atousa Chaharsough Shirazi

Fabio Anza Università di Pisa

Aristide Baratin SAIT AI Lab Montreal

July 26, 2013

PIRSA:13070086

13/14 PSI - Algebra - Lecture 1

Anna Kostouki

August 14, 2013

PIRSA:13080009
13/14 PSI- Complex Analysis - Lecture 1

Tibra Ali Perimeter Institute for Theoretical Physics

August 14, 2013

PIRSA:13080002
Orbifold partition function and their phases

Daisuke Yokoyama Seoul National University

August 13, 2013

PIRSA:13080044

High Energy Physics

We discuss a partition function of 3d supersymmetric gauge theories on the (p, -1) Lens space.
In 3d the partition function is directly used to check dualities though the normalization is not seriously treated, especially, the phase is usually ignored. However, when we consider the partition function on the orbifold the partition function consists of the sum of factors labeled by holonomies and their relative phases become crucial. We stress that the known formula for the partition function is incorrect and some relative phase factors are needed to identify the partition functions of dual theories.
13/14 PSI - Introductions

August 12, 2013

PIRSA:13080045
13/14 PSI - Welcome

August 12, 2013

PIRSA:13080001
Neutron Stars and the Dense Matter Equation of State

Madappa Prakash Ohio University

August 08, 2013

PIRSA:13080000

General Relativity & Quantum Cosmology

Implications of recently well-measured neutron star masses, particularly near and above 2 solar masses, for the equation of state (EOS) of neutron star matter will be highlighted. Model independent upper limits to thermodynamic properties in neutron stars, which only depend on the neutron star maximum mass, established from causality considerations will be presented. The need for non-perturbative treatments of quark matter in neutron stars is revealed through studies of self-bound quark matter stars, and of nucleon-quark hybrid stars. The extent to which several well-measured masses and radii of individual neutron stars can establish a model-independent EOS through an inversion of the stellar structure equations will be briefly discussed.
Effective Field Theory of Multi-Field Inflation a la Weinberg

Nima Khosravi Shahid Beheshti University

July 30, 2013

PIRSA:13070091

Astrophysics

We
employ the effective field theory approach for multi-field inflation which is a
generalization of Weinberg's work. In this method the first correction terms in
addition to standard terms in the Lagrangian have been considered. These terms
contain up to the fourth derivative of the fields including the scalar field
and the metric. The results show the possible shapes of the interaction terms
resulting eventually in non-Gaussianity in a general formalism. In addition
generally the speed of sound is different but almost unity. Since in this
method the adiabatic mode is not discriminated initially so we define the
adiabatic as well as entropy modes for a specific two-field model. It has been
shown that the non-Gaussianity of the adiabatic mode and the entropy mode are
correlated in shape and amplitude. It is shown that even for speed close to
unity large non-Gaussianities are possible in multi-field case. The amount of
the non-Gaussianity depends on the curvature of the classical path in the
phase-space in the Hubble unit such that it is large for the large curvature.
In addition it is emphasized that the time derivative of adiabatic and entropy
perturbations do not transform due to the shift symmetry as well as the
original perturbations. Though two specific combinations of them are invariant
under such a symmetry and these combinations should be employed to construct an
effective field theory of multi-field inflation.
Quantum Foundations - 2

David Schroeren University of Oxford

Paolo Bertozzini Thammasat University

Bruno Hartmann

July 26, 2013

PIRSA:13070088
Mixed Session

Valerio Astuti

Seth Major Hamilton College

Michael Reisenberger Universidad de la Republica Uruguay

Jacobo Diaz-Polo

July 26, 2013

PIRSA:13070090
Renormalization - 3

Tobias Henz Universität Heidelberg - Institut für Theoretische Physik

Kevin Falls University of Sussex

Mohamed Anber Canadian Institute for Theoretical Astrophysics (CITA)

July 26, 2013

PIRSA:13070089
Quantum Cosmology - 5

Hector Hernandez Universidad Autonoma de Chihuahua

Edison Montoya Universidad de Antioquia

Matthew Hogan

Francesca Vidotto Western University

July 26, 2013

PIRSA:13070087
Canonical Quantum Gravity and Spin Foams

Antonia Zipfel

Mingyi Zhang Aix-Marseille University

Atousa Chaharsough Shirazi

Fabio Anza Università di Pisa

Aristide Baratin SAIT AI Lab Montreal

July 26, 2013

PIRSA:13070086

Title	Date	Collection	Type	Info
13/14 PSI - Algebra - Lecture 1	2013‑08‑14	13/14 PSI - Front End	Course	View details
13/14 PSI- Complex Analysis - Lecture 1	2013‑08‑14	13/14 PSI - Front End	Course	View details
Orbifold partition function and their phases	2013‑08‑13	Quantum Fields and Strings	Scientific Series	View details
13/14 PSI - Introductions	2013‑08‑12	13/14 PSI - Front End	Course	View details
13/14 PSI - Welcome	2013‑08‑12	13/14 PSI - Front End	Course	View details
Neutron Stars and the Dense Matter Equation of State	2013‑08‑08	Strong Gravity	Scientific Series	View details
Effective Field Theory of Multi-Field Inflation a la Weinberg	2013‑07‑30	Cosmology and Gravitation	Scientific Series	View details
Quantum Foundations - 2	2013‑07‑26	Loops 13	Conference	View details
Mixed Session	2013‑07‑26	Loops 13	Conference	View details
Renormalization - 3	2013‑07‑26	Loops 13	Conference	View details
Quantum Cosmology - 5	2013‑07‑26	Loops 13	Conference	View details
Canonical Quantum Gravity and Spin Foams	2013‑07‑26	Loops 13	Conference	View details

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Format results

13/14 PSI - Algebra - Lecture 1

13/14 PSI- Complex Analysis - Lecture 1

Orbifold partition function and their phases

13/14 PSI - Introductions

13/14 PSI - Welcome

Neutron Stars and the Dense Matter Equation of State

Effective Field Theory of Multi-Field Inflation a la Weinberg

Quantum Foundations - 2

Mixed Session

Renormalization - 3

Quantum Cosmology - 5

Canonical Quantum Gravity and Spin Foams

13/14 PSI - Algebra - Lecture 1

13/14 PSI- Complex Analysis - Lecture 1

Orbifold partition function and their phases

13/14 PSI - Introductions

13/14 PSI - Welcome

Neutron Stars and the Dense Matter Equation of State

Effective Field Theory of Multi-Field Inflation a la Weinberg

Quantum Foundations - 2

Mixed Session

Renormalization - 3

Quantum Cosmology - 5

Canonical Quantum Gravity and Spin Foams