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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Robert Brandenberger


PIRSA:17060096  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Challenges for Bouncing Cosmologies
Abstract: I will review various approaches to bouncing cosmologies and will discuss challenges which the different approaches face.
Date: 26/06/2017 - 2:00 pm

PIRSA:14100002  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Is B-Mode Polarization of the CMB the Holy Grail of Inflation?
Abstract: I will discuss why the search for B-Mode Polarization of the Cosmic Microwave Background (CMB) is very important for early universe cosmology, but that a discovery of such a polarization mode is in no way a confirmation of inflationary cosmology.
Date: 16/10/2014 - 2:30 pm

PIRSA:12100090  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Quantum Gravity Effects in the (Early and Late) Universe
Abstract: Quantum Gravity at the origin of seeds of cosmic structure?This meeting shows a our impatience for uncovering at long last any signal of unknown physics that might have a quantum gravitational origin. I will argue that the transition from a homogenous and isotropic state characterizing the mid-earl... read more
Date: 23/10/2012 - 10:20 am

PIRSA:12100085  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Photons and Quantum Gravity in Astrophysics
Abstract: Asymptotically safe inflation and CMB polarizationThe presence of complex critical exponents in the scaling behavior of the Newton constant and Cosmological  constant has dramatic consequences at the inflation scale. In particular an infinite number of unstable de-Sitter vacua emerges from ... read more
Date: 22/10/2012 - 4:30 pm

PIRSA:11080020  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Looking for Cosmic Strings in New Observational Windows
Abstract: Cosmic strings are predicted to arise in both inflationary and non-inflationary cosmological models. The signatures of such strings will stand out particularly well at higher redshifts. I will discuss how to look for these signatures in CMB redshift and polarization maps and in 21cm redshift su... read more
Date: 10/08/2011 - 2:00 pm

PIRSA:09110059  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Background Cosmology and Cosmological Perturbations in Horava-Lifshitz Gravity
Abstract:
Date: 09/11/2009 - 2:00 pm

PIRSA:09100197  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Meet a Scientist - Prof. Robert Brandenberger
Abstract: Cosmology as a natural meeting ground for fundamental theory (e.g. superstring theory or quantum gravity) and observations. Exploring how seeds laid down in the very early universe developed into the large scale structure we observe in the universe today.
Date: 05/10/2009 - 2:40 am
Collection: Meet a Scientist

PIRSA:09070025  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Holography in String Gas Cosmology
Abstract: I will review the string gas scenario of structure formation, stressing the role which holography plays. I will also discuss another way of obtaining a scale-invariant spectrum of cosmological perturbations (with specific signatures in the bispectrum) which may be realizable in scenarios based on th... read more
Date: 16/07/2009 - 4:00 pm

PIRSA:08110032  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Cosmology of the Lee-Wick Model
Abstract: The Lee-Wick model has recently been put forwards as an alternative to supersymmetry for solving the hierarchy problem of particle physics. I will show that, modulo important consistency questions, coupling the Lee-Wick model to cosmology leads to a bouncing universe cosmology with a scale-invariant... read more
Date: 11/11/2008 - 2:00 pm

PIRSA:08030044  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Progress and Puzzles in String Gas Cosmology
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Date: 07/03/2008 - 2:00 pm

PIRSA:07110053  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Probing string theory through cosmological observations?
Abstract: If string theory is the correct theory which unifies gravity with the other forces of nature at a quantum level, it should determine the evolution of the earliest stages of the universe. I will discuss how stringy signatures of this early phase may be visible in current cosmological observations.
Date: 08/11/2007 - 11:15 am

PIRSA:06040029  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Trans - Planckian Issues for Inflationary Cosmology
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Date: 07/09/2006 - 4:00 pm

PIRSA:05100062  ( MP4 Medium Res , MP3 , PDF ) Which Format?
50 years since WMAP
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Date: 28/10/2005 - 9:30 am

PIRSA:05080027  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Evolving Laws: Chapter 12 - Can one conceive of time as emergent?
Abstract: Comment by Simon Saunders and discussion with Robert Brandenberger and Roberto Unger.
Matrix theory;
Further comments.
Date: 16/08/2005 - 2:45 pm

PIRSA:05030143  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Moduli Stabilization in String Gas Cosmology
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Date: 30/03/2005 - 10:35 am

PIRSA:04080014  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Cosmology
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Date: 17/08/2004 - 3:15 pm
Collection: ISSYP 2004

PIRSA:04040001  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Theory of Cosmological Perterbations - Lecture 4, Part 1
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Date: 28/04/2004 - 1:00 pm

PIRSA:04040000  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Theory of Cosmological Perterbations - Lecture 3, Part 1
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Date: 20/04/2004 - 11:00 am

PIRSA:04030000  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Challenges for Theories of Fundamental Physics from Cosmology - Part 2
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Date: 09/03/2004 - 12:00 pm

PIRSA:04030001  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Challenges for Theories of Fundamental Physics from Cosmology - Part 1
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Date: 02/03/2004 - 1:00 pm

PIRSA:04020000  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Theory of Cosmological Perterbations - Final
Abstract:
Date: 20/02/2004 - 3:30 pm
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