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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Paul McFadden


PIRSA:13070006  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Precision Holographic Cosmology
Speaker(s): Paul McFadden
Abstract: We discuss holography for cosmology, focusing on a class of slow-roll inflationary spacetimes that are holographically dual to a perturbative RG flow between two nearby CFTs.   The cosmological power spectrum and non-Gaussianities may be calculated directly from the dual QFT using ... read more
Date: 08/07/2013 - 10:50 am

PIRSA:12110078  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Holography for inflation using conformal perturbation theory.
Speaker(s): Paul McFadden
Abstract: Holographic cosmology maps cosmological time evolution to the inverse RG flow of a dual three-dimensional QFT. In cases where this RG flow connects two closely separated fixed points, QFT correlators may be calculated perturbatively in terms of the conformal field theory associated with one o... read more
Date: 22/11/2012 - 11:00 am

PIRSA:11090134  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
The Holographic Fluid Dual to Vacuum Einstein Gravity
Speaker(s): Paul McFadden
Abstract: I'll discuss how to systematically construct a (d+2)-dimensional solution of the vacuum Einstein equations that is dual to a (d+1)-dimensional fluid satisfying the incompressible Navier-Stokes equations with specific higher-derivative corrections. The solution takes the form of a non-relativistic gr... read more
Date: 27/09/2011 - 11:00 am

PIRSA:11070018  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Inflationary Cosmology: A Holographic Perspective
Speaker(s): Paul McFadden
Abstract: We present a holographic framework for inflationary universes, in particular those that are either asymptotically de Sitter or asymptotically power-law. This framework reveals how cosmological observables, including the primordial power spectrum and non-Gaussianities, are encoded in the correlation ... read more
Date: 14/07/2011 - 5:30 pm

PIRSA:10040020  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The Holographic Universe
Speaker(s): Paul McFadden
Abstract: We present a holographic description of four-dimensional single-scalar inflationary universes in terms of a three-dimensional quantum field theory. The holographic description correctly reproduces standard inflationary predictions in their regime of applicability. In the opposite case, wherein gravi... read more
Date: 20/04/2010 - 2:00 pm

PIRSA:10040089  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Holography for Cosmology
Speaker(s): Paul McFadden
Abstract: TBA
Date: 15/04/2010 - 1:00 pm

PIRSA:08030046  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Wald Entropy and the Einstein Equation of State
Speaker(s): Paul McFadden
Abstract:
Date: 07/03/2008 - 4:30 pm
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