SFU Cosmology Seminars

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Friday, 14 November 2008, 14:30 in AQ3181

Prof. Robert Brandenberger (McGill University)

String theory and the very early universe (physics colloquium)
The inflationary universe scenario is the current paradigm of early universe cosmology. However, current realizations of inflation suffer from some serious conceptual problems. Superstring theory provides the framework for developing a new theory of the very early universe. I will discuss a new cosmological model ("string gas cosmology") which is based on a number of key ingredients of superstring theory. According to this model, the universe began not with a phase of inflation, but as a hot string soup, and the cosmological inhomogeneities we can measure today were seeded by thermal fluctuations of this gas of strings.

Seminars in 2008:

2008-09-25 14:00 in IRMACS - Dmitri Korotkin (Concordia University): Canonical quantization of Einstein-Rosen gravitational waves with two polarizations

2008-10-02 14:00 in IRMACS - Andrei Frolov (SFU): A singularity problem with f(R) dark energy

2008-11-14 14:30 in AQ3181 - Robert Brandenberger (McGill University): String theory and the very early universe (physics colloquium)

2009-01-23 14:30 in P8445B - Fotini Markopoulou (Perimeter): Two ways to derive a spacetime in quantum gravity

2009-01-27 14:00 in P8445A - Edward Chapin (UBC): Detecting massive star-forming galaxies at z>1 using BLAST and SCUBA-2 submillimetre wavelength surveys

2009-02-03 14:00 in P8445A - Subinoy Das (UBC): Late forming dark matter

2009-02-20 14:30 in AQ3182 - Mark Trodden (Syracuse University): Gravitational approaches to cosmic acceleration (physics colloquium)

2009-02-24 14:00 in P8445A - Adam Ritz (University of Victoria): Probing pseudoscalar perturbations with CMB polarization

2009-03-03 14:00 in P8445A - John Ward (University of Victoria): Gravitational wave constraints on multi-brane inflation

2009-03-10 14:00 in P8445A - Phil Gregory (UBC): Mining for extra-solar planets with a Bayesian MCMC Kepler periodogram

2009-03-27 14:30 in AQ3182 - Suzanne Staggs (Princeton University): The impact of the last 13 billion years and of the first 10^-35 seconds on the CMB (physics colloquium)

2009-05-05 14:00 in P8445B - Justin Khoury (University of Pennsylvania): Cascading gravity

2009-07-21 14:00 in P8445B - Daniele Steer (APC, Paris): Multi-field DBI inflation: primordial perturbations and non-Gaussianities

[ See complete seminar archives | iCal feed ]

Modified by Andrei Frolov <frolov@sfu.ca> on 2023-11-01

2008-09-25 14:00 in IRMACS	- Dmitri Korotkin (Concordia University): Canonical quantization of Einstein-Rosen gravitational waves with two polarizations
2008-10-02 14:00 in IRMACS	- Andrei Frolov (SFU): A singularity problem with f(R) dark energy
2008-11-14 14:30 in AQ3181	- Robert Brandenberger (McGill University): String theory and the very early universe (physics colloquium)
2009-01-23 14:30 in P8445B	- Fotini Markopoulou (Perimeter): Two ways to derive a spacetime in quantum gravity
2009-01-27 14:00 in P8445A	- Edward Chapin (UBC): Detecting massive star-forming galaxies at z>1 using BLAST and SCUBA-2 submillimetre wavelength surveys
2009-02-03 14:00 in P8445A	- Subinoy Das (UBC): Late forming dark matter
2009-02-20 14:30 in AQ3182	- Mark Trodden (Syracuse University): Gravitational approaches to cosmic acceleration (physics colloquium)
2009-02-24 14:00 in P8445A	- Adam Ritz (University of Victoria): Probing pseudoscalar perturbations with CMB polarization
2009-03-03 14:00 in P8445A	- John Ward (University of Victoria): Gravitational wave constraints on multi-brane inflation
2009-03-10 14:00 in P8445A	- Phil Gregory (UBC): Mining for extra-solar planets with a Bayesian MCMC Kepler periodogram
2009-03-27 14:30 in AQ3182	- Suzanne Staggs (Princeton University): The impact of the last 13 billion years and of the first 10^-35 seconds on the CMB (physics colloquium)
2009-05-05 14:00 in P8445B	- Justin Khoury (University of Pennsylvania): Cascading gravity
2009-07-21 14:00 in P8445B	- Daniele Steer (APC, Paris): Multi-field DBI inflation: primordial perturbations and non-Gaussianities