Talks

10489 - 10500 of 19186 Results

14/15 PSI - Mathematica-4

Erik Schnetter Perimeter Institute for Theoretical Physics

September 05, 2014

PIRSA:14090040
14/15 PSI - Green Functions-4

Denis Dalidovich

September 05, 2014

PIRSA:14090036
Firewalls- A GR perspective

Bill Unruh University of British Columbia

September 04, 2014

PIRSA:14090066

General Relativity & Quantum Cosmology
14/15 PSI - Mathematica-3

Erik Schnetter Perimeter Institute for Theoretical Physics

September 04, 2014

PIRSA:14090039
14/15 PSI - Green Functions-3

Denis Dalidovich

September 04, 2014

PIRSA:14090035
14/15 PSI - Mathematica-2

Erik Schnetter Perimeter Institute for Theoretical Physics

September 03, 2014

PIRSA:14090038
14/15 PSI - Green Functions-2

Denis Dalidovich

September 03, 2014

PIRSA:14090034
Monogamy of entanglement and improved mean-field ansatz for spin lattices

Ralf Schuetzhold Helmholtz-Zentrum Dresden-Rossendorf

September 02, 2014

PIRSA:14090069

Condensed Matter
Asymmetric Dark Matter Bound States

Mark Wise California Institute of Technology (Caltech)

September 02, 2014

PIRSA:14090068
Black hole evaporation without firewalls

James Bardeen

September 02, 2014

PIRSA:14090001

Astrophysics
14/15 PSI - Mathematica-1

Erik Schnetter Perimeter Institute for Theoretical Physics

September 02, 2014

PIRSA:14090037
14/15 PSI - Green Functions-1

Denis Dalidovich

September 02, 2014

PIRSA:14090033

14/15 PSI - Mathematica-4

Erik Schnetter Perimeter Institute for Theoretical Physics

September 05, 2014

PIRSA:14090040
14/15 PSI - Green Functions-4

Denis Dalidovich

September 05, 2014

PIRSA:14090036
Firewalls- A GR perspective

Bill Unruh University of British Columbia

September 04, 2014

PIRSA:14090066

General Relativity & Quantum Cosmology

This talk will examine the Firewall argument and a number of possible approaches to it, with a variety of simple examples to try to clarify various aspects of the arguments.
14/15 PSI - Mathematica-3

Erik Schnetter Perimeter Institute for Theoretical Physics

September 04, 2014

PIRSA:14090039
14/15 PSI - Green Functions-3

Denis Dalidovich

September 04, 2014

PIRSA:14090035
14/15 PSI - Mathematica-2

Erik Schnetter Perimeter Institute for Theoretical Physics

September 03, 2014

PIRSA:14090038
14/15 PSI - Green Functions-2

Denis Dalidovich

September 03, 2014

PIRSA:14090034
Monogamy of entanglement and improved mean-field ansatz for spin lattices

Ralf Schuetzhold Helmholtz-Zentrum Dresden-Rossendorf

September 02, 2014

PIRSA:14090069

Condensed Matter

We consider rather general spin-1/2 lattices with large coordination numbers Z.
Based on the monogamy of entanglement and other properties of the concurrence C,
we derive rigorous bounds for the entanglement between neighboring spins,
which show that C decreases for large Z. In addition, the concurrence C measures the deviation from mean-field behavior and can only vanish if the mean-field ansatz yields an exact ground state of the Hamiltonian. Motivated by these findings, we propose an improved mean-field ansatz by adding entanglement
Asymmetric Dark Matter Bound States

Mark Wise California Institute of Technology (Caltech)

September 02, 2014

PIRSA:14090068

One of the simplest low energy effective theories with Asymmetric Dark Matter contains a gauge singlet Dirac Fermion for the dark matter and a gauge singlet scalar as the mediator that the dark matter decays into. In this model I discuss the spectrum of bound states (two body and multi-body) and the cosmological production/dissociation of dark matter two body bound states.
Black hole evaporation without firewalls

James Bardeen

September 02, 2014

PIRSA:14090001

Astrophysics

There need not be any conflict between unitarity, locality, and regularity of the horizon in black hole evaporation. I discuss a scenario in which the initial collapse that forms the black hole results in a small non-singular core inside an inner event horizon. This core grows as the result of quantum back-reaction associated with the increasing entanglement entropy of Hawking radiation quanta and their partners trapped inside the core. By the Page time the inner and outer apparent horizons either merge into a degenerate horizon, shutting off the Hawking radiation and leaving a massive remnant, or they disappear completely, allowing the trapped quantum information to escape. The scenario is justified by appeals to the Bousso covariant entropy bound and the ER=EPR conjecture. The talk is largely based on arxiv.org/1406.4098.
14/15 PSI - Mathematica-1

Erik Schnetter Perimeter Institute for Theoretical Physics

September 02, 2014

PIRSA:14090037
14/15 PSI - Green Functions-1

Denis Dalidovich

September 02, 2014

PIRSA:14090033

Title	Date	Collection	Type	Info
14/15 PSI - Mathematica-4	2014‑09‑05	14/15 PSI - Front End	Course	View details
14/15 PSI - Green Functions-4	2014‑09‑05	14/15 PSI - Front End	Course	View details
Firewalls- A GR perspective	2014‑09‑04	Quantum Gravity	Scientific Series	View details
14/15 PSI - Mathematica-3	2014‑09‑04	14/15 PSI - Front End	Course	View details
14/15 PSI - Green Functions-3	2014‑09‑04	14/15 PSI - Front End	Course	View details
14/15 PSI - Mathematica-2	2014‑09‑03	14/15 PSI - Front End	Course	View details
14/15 PSI - Green Functions-2	2014‑09‑03	14/15 PSI - Front End	Course	View details
Monogamy of entanglement and improved mean-field ansatz for spin lattices	2014‑09‑02	Quantum Matter	Scientific Series	View details
Asymmetric Dark Matter Bound States	2014‑09‑02	Particle Physics	Scientific Series	View details
Black hole evaporation without firewalls	2014‑09‑02	Cosmology and Gravitation	Scientific Series	View details
14/15 PSI - Mathematica-1	2014‑09‑02	14/15 PSI - Front End	Course	View details
14/15 PSI - Green Functions-1	2014‑09‑02	14/15 PSI - Front End	Course	View details

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Format results

14/15 PSI - Mathematica-4

14/15 PSI - Green Functions-4

Firewalls- A GR perspective

14/15 PSI - Mathematica-3

14/15 PSI - Green Functions-3

14/15 PSI - Mathematica-2

14/15 PSI - Green Functions-2

Monogamy of entanglement and improved mean-field ansatz for spin lattices

Asymmetric Dark Matter Bound States

Black hole evaporation without firewalls

14/15 PSI - Mathematica-1

14/15 PSI - Green Functions-1

14/15 PSI - Mathematica-4

14/15 PSI - Green Functions-4

Firewalls- A GR perspective

14/15 PSI - Mathematica-3

14/15 PSI - Green Functions-3

14/15 PSI - Mathematica-2

14/15 PSI - Green Functions-2

Monogamy of entanglement and improved mean-field ansatz for spin lattices

Asymmetric Dark Matter Bound States

Black hole evaporation without firewalls

14/15 PSI - Mathematica-1

14/15 PSI - Green Functions-1