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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Robert Wald


PIRSA:15080025  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Information Loss
Speaker(s): Robert Wald
Abstract: It is argued that information is lost in the process of black hole formation and evaporation.
Date: 13/08/2015 - 9:05 am

PIRSA:15050134  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Black Holes, Thermodynamics, and Lagrangians
Speaker(s): Robert Wald
Abstract:
Date: 01/05/2015 - 11:15 am

PIRSA:13060014  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Dynamic and Thermodynamic Stability of Black Holes and Black Branes
Speaker(s): Robert Wald
Abstract: I describe recent work with with Stefan Hollands that establishes a new criterion for the dynamical stability of black holes in $D geq 4$ spacetime dimensions in general relativity with respect to axisymmetric perturbations: Dynamic stability is equivalent to the positivity of the canonical energy, ... read more
Date: 13/06/2013 - 1:00 pm

PIRSA:10040030  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Self-Force on a Classical Point Charge
Speaker(s): Robert Wald
Abstract: For the past century, there has been much discussion and debate about the equations of motion satisfied by a classical point charge when the effects of its own electromagnetic field are taken into account. Derivations by Abraham (1903), Lorentz (1904), Dirac (1938) and others suggest that the &q... read more
Date: 05/04/2010 - 4:30 pm

PIRSA:07090017  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Field Theory in Curved Spacetime
Speaker(s): Robert Wald
Abstract: Quantum field theory in curved spacetime (QFTCS) is the theory of quantum fields propagating in a classical curved spacetime, as described by general relativity. QFTCS has been applied to describe such important and interesting phenomena as particle creation by black holes and perturbations in the e... read more
Date: 19/09/2007 - 2:00 pm
Series: Colloquium
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