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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C12027 - Conformal Nature of the Universe - 2012PODCAST Subscribe to podcast

Conformal Nature of the Universe

Organizer(s):

Collection URL: http://pirsa.org/C12027


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PIRSA:12050062  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Towards Conformal Degrees of Freedom in CDT
Speaker(s): Renate Loll
Abstract: TBA
Date: 09/05/2012 - 9:10 am

PIRSA:12050065  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
The Multicritical Universe
Speaker(s): Petr Horava
Abstract: This talk reviews the idea of quantum gravity with anisotropic scaling, and presents a scenario in which this theory of gravity is coupled to matter, described by the standard model or beyond.This "multicritical universe" scenario predicts systematic, energy-dependent, calculable Lorentz-violating c... read more
Date: 09/05/2012 - 10:30 am

PIRSA:12050066  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Trials and Tribulations of Aether
Speaker(s): Niayesh Afshordi
Abstract: The tremendous empirical success of Einstein's relativity has pushed Aether into a chapter in the history books, for nearly a century. However, a phenomenologically consistent quantum mechanical treatment of gravity has motivated a revival of aether, by taming its UV-divergences, o... read more
Date: 09/05/2012 - 11:20 am

PIRSA:12050067  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Shape Dynamics: Relativity Without Relativity
Speaker(s): Flavio Mercati
Abstract: I review the best-matching construction,  and the striking properties of a Jacobi-type action first introduced by Baierelein, Sharp and Wheeler. The simplest theories compatible with such an action principle must have a universal light-cone and gauge symmetry. I also descr... read more
Date: 09/05/2012 - 4:00 pm

PIRSA:12050068  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
The Theory of Shape Dynamics
Speaker(s): Henrique Gomes
Abstract:
Date: 10/05/2012 - 9:00 am

PIRSA:12050059  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Doubly General Relativity
Speaker(s): Tim Koslowski
Abstract:
Date: 10/05/2012 - 9:50 am

PIRSA:12050069  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
2+1 gravity as a conformal gauge theory and some frontiers for Shape Dynamics
Speaker(s): Sean Gryb
Abstract: I will start by showing that gravity, with positive cosmological constant in 2+1 dimensions, can be formulated as a theory of dynamic conformal spatial geometry. Exploiting the isomorphism between the isometry group of de Sitter space in D+1 dimensions and the conformal group in D dimensions, I will... read more
Date: 10/05/2012 - 11:10 am

PIRSA:12050070  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Relationalism
Speaker(s): Edward Anderson
Abstract: I shall describe Relationalism, especially in the Leibniz-Mach-Barbour sense of the word and my variations on that theme. My presentation shall give five extensions to Barbour's work: (more or less) phase space, categorization, subsystems analysis, quantization, and physics as a propositional logic ... read more
Date: 10/05/2012 - 2:30 pm

PIRSA:12050063  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Conformal Gravity and AdS/CFT
Speaker(s): Kostas Skenderis
Abstract: TBA
Date: 10/05/2012 - 3:20 pm

PIRSA:12050071  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Scale Without Conformal Invariance in Relativistic Quantum Field Theory
Speaker(s): Benjamin Grinstein
Abstract: In 2-dim it is known that a unitary, well defined quantum field theory, if scale invariant must also be invariant under conformal transformations. Whether this is also true in dimensions higher than two has been an open question for decades. We have discovered renomalization group ... read more
Date: 10/05/2012 - 4:40 pm

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