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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Matthew Headrick


PIRSA:16070011  ( MP4 Medium Res , MP3 , PDF ) Which Format?
A new perspective on holographic entanglement
Speaker(s): Matthew Headrick
Abstract: The by-now classic Ryu-Takayanagi formula associates the entanglement entropy of a spatial region in a holographic field theory with the area of a certain minimal surface in the bulk. Despite its simplicity and beauty, this formula raises a number of stubborn conceptual problems. I will present a re... read more
Date: 18/07/2016 - 5:00 pm

PIRSA:15080060  ( MP4 Medium Res , MP3 , PDF ) Which Format?
A new perspective on holographic entanglement
Speaker(s): Matthew Headrick
Abstract: We will present a reformulation of the Ryu-Takayanagi holographic entanglement entropy formula which does not involve the areas of surfaces. The reformulation leads to a picture of entanglement entropy of boundary regions being carried by Planck-thickness "bit threads" in the bulk. We will argue tha... read more
Date: 17/08/2015 - 11:00 am

PIRSA:14020146  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Causality, holography, and entanglement entropy
Speaker(s): Matthew Headrick
Abstract: After giving a brief overview of holographic entanglement entropy formulas, I will explore a curious feature they imply: when the bulk spacetime includes a black hole, the entanglement entropies often appear to depend on the spacetime geometry inside the horizon. I will ask whether this implies any ... read more
Date: 20/02/2014 - 1:00 pm

PIRSA:05120005  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Closed string tachyon dynamics
Speaker(s): Matthew Headrick
Abstract: Given the difficulty of studying time-dependent processes in string theory, closed string tachyon condensation problems are often modelled by the process of renormalization group flow on the world-sheet. But what is the quantitative relation between these two processes? In this talk I will give a pa... read more
Date: 07/12/2005 - 11:00 am
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