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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Thomas Hartman


PIRSA:19090097  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Dynamical constraints on RG flows and cosmology
Speaker(s): Thomas Hartman
Abstract: In QFT, the renormalization group is usually formulated in Euclidean signature. I will discuss time-dependent probes of the RG, in Lorentzian signature, and derive new dynamical constraints that govern the spread of local operators. Through a chain of Wick rotations and dualities, the same methods l... read more
Date: 09/09/2019 - 2:30 pm

PIRSA:16070024  ( MP4 Medium Res , MP3 , PDF ) Which Format?
QFT Basics -2
Speaker(s): Thomas Hartman
Abstract:
Date: 21/07/2016 - 9:00 am

PIRSA:16070013  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
QFT Basics - 1
Speaker(s): Thomas Hartman
Abstract:
Date: 19/07/2016 - 9:00 am

PIRSA:14020084  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Towards a 1/c Expansion in 2d Conformal Field Theory
Speaker(s): Thomas Hartman
Abstract: I will describe progress in deriving 3d gravity directly from 2d conformal field theory at large central charge 'c'. In a large class of CFTs, using general arguments like modular invariance, crossing symmetry, and the OPE expansion, the spectrum, the entanglement entropy, and certain partition func... read more
Date: 04/02/2014 - 2:00 pm

PIRSA:09010038  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The Kerr/CFT Correspondence
Speaker(s): Thomas Hartman
Abstract: Holography is usually applied to black holes that are supersymmetric, charged, or living in higher dimensions. The astrophysical Kerr black holes that have been observed in the sky have none of these nice properties, and AdS/CFT does not apply. Nevertheless, by studying the symmetries of the near ho... read more
Date: 24/01/2009 - 4:00 pm
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