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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Matthew Johnson


Explorations in Cosmology - Lecture 15
Abstract:
Date: 30/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 14
Abstract:
Date: 29/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 13
Abstract:
Date: 28/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 12
Abstract:
Date: 27/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 11
Abstract:
Date: 26/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 10
Abstract:
Date: 23/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 9
Abstract:
Date: 22/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 8
Abstract:
Date: 21/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 7
Abstract:
Date: 20/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 6
Abstract:
Date: 19/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 5
Abstract:
Date: 16/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 4
Abstract:
Date: 15/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 3
Abstract:
Date: 14/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 2
Abstract:
Date: 13/03/2012 - 10:15 am

Explorations in Cosmology - Lecture 1
Abstract:
Date: 12/03/2012 - 10:15 am

First Observational Tests of Eternal Inflation
Speaker(s): Matthew Johnson
Abstract: Inflation, a postulated epoch of accelerated expansion in the early universe, has become a principal component of the standard model of cosmology. From a wide variety of initial conditions, inflation produces a nearly homogeneous universe populated by density fluctuations that seed large-scale struc... read more
Date: 27/02/2012 - 11:00 am

Feature-finding in the cosmic microwave background
Speaker(s): Matthew Johnson
Abstract:
Date: 09/02/2012 - 11:40 am

Bringing Terminal Vacua Back to Life With Classical Transitions
Speaker(s): Matthew Johnson
Abstract: In this talk, I will describe how the collision of Minkowski or crunching bubbles can re-start inflation in a portion of the bubble interior. Consistent with various singularity theorems, such collisions can only seed a lasting inflationary phase with energy density lower than that of the parent vac... read more
Date: 12/07/2011 - 5:30 pm

Observational tests of eternal inflation
Speaker(s): Matthew Johnson
Abstract: In the picture of eternal inflation, our observable universe resides inside a single bubble nucleated from an inflating false vacuum. Some of the theories giving rise to eternal inflation predict that we have causal access to collisions with other bubble universes, providing an opportunity to confro... read more
Date: 25/01/2011 - 2:00 pm

Dynamical compactification from higher dimensional de Sitter space
Speaker(s): Matthew Johnson
Abstract: TBA
Date: 16/07/2009 - 11:30 am

Cosmology inside the brane and holography
Speaker(s): Matthew Johnson
Abstract: TBA
Date: 02/07/2009 - 11:00 am

Bubble Nucleation and Eternal Inflation
Speaker(s): Matthew Johnson
Abstract: A number of mechanisms have been introduced in previous literature that might be responsible for transitions between metastable minima in a scalar field theory coupled to gravity. The connection between these transition mechanisms has remained unclear, and current formulations of eternal inflation o... read more
Date: 05/12/2006 - 10:30 am
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