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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Benjamin Bahr


PIRSA:17060087  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tutorial: Coarse-graining of Spin Foams
Abstract:
Date: 22/06/2017 - 3:45 pm

PIRSA:17060085  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Coarse-graining of Spin Foams - 4
Abstract:
Date: 22/06/2017 - 12:00 pm

PIRSA:17060084  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Coarse-graining of Spin Foams - 3
Abstract:
Date: 22/06/2017 - 11:00 am

PIRSA:17060080  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tutorial: Coarse-graining of Spin Foams
Abstract:
Date: 21/06/2017 - 3:45 pm

PIRSA:17060078  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Coarse-graining of Spin Foams - 2
Abstract:
Date: 21/06/2017 - 12:00 pm

PIRSA:17060077  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Coarse-graining of Spin Foams - 1
Abstract:
Date: 21/06/2017 - 11:00 am

PIRSA:15090077  ( MP4 Medium Res , MP3 , PDF ) Which Format?
TBA
Speaker(s): Benjamin Bahr
Abstract:
Date: 28/09/2015 - 11:00 am

PIRSA:14040101  ( MP4 Medium Res , MP3 , PDF ) Which Format?
On background-independent renormalization in state-sum model
Speaker(s): Benjamin Bahr
Abstract: In this talk we discuss some notion of coarse graining in state-sums, most notably a class of spin foam models in their holonomy representations. We discuss the notion of scale in this context, and how diffeomorphism-invariance ties into the existence of a continuum limit. We close with an example a... read more
Date: 24/04/2014 - 11:00 am

PIRSA:07110034  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Automorphisms in Loop Quantum Gravity
Speaker(s): Benjamin Bahr
Abstract: There is a deep relation between Loop Quantum Gravity and notions from category theory, which have been pointed out by many researchers, such as Baez or Velhinho. Concepts like holonomies, connections and gauge transformations can be naturally formulated in that language. In this formulation, the (s... read more
Date: 15/11/2007 - 2:00 pm
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