PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
 | PIRSA:08100050
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
Dirac's penumbra: constraints and gauge transformations in reparametrization invariant theories Speaker(s): Brendan Foster
Abstract: A simple theorem of Dirac identifies primary first-class constraints as generators of transformations, 'that do not affect the physical state'. This result has profound implications for the definition of physical states and observables in the quantization of constrained systems, and leads to one asp... read more
Date: 07/10/2008 - 4:00 pm
Series: Quantum Foundations
|
 | PIRSA:06120033
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
Aethereal Gravity Speaker(s): Brendan Foster
Abstract: Hints from quantum gravity suggest that a preferred frame may actually exist. One way to accommodate such a frame in general relativity without sacrificing diffeomorphism invariance is to couple the metric to a dynamical, time like, unit-norm vector field--the "aether". I will discuss properties an... read more
Date: 06/12/2006 - 4:30 pm
Collection: Young Researchers Conference - 2006
|
 | PIRSA:06090021
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
QFT on a growing lattice Speaker(s): Brendan Foster
Abstract:
Date: 05/09/2006 - 11:00 am
|
