SFU Cosmology Seminars

For seminars and other local announcements, please subscribe to sfu-cosmo mailing list.

Tuesday, 3 March 2009, 14:00 in P8445A

Dr. John Ward (University of Victoria)

Gravitational wave constraints on multi-brane inflation
The vanilla model of DBI-inflation has essentially been ruled out by the WMAP 5 year data. The generation of large non-Gaussianities and a detectable level of tensor perturbations are incompatible. In this talk I will discuss a phenomenological class of non-canonical inflationary models that could yield both a large level of non-Gaussian perturbations and a detectable tensor spectrum. I will then discuss how this model can be realised in a string theory setting.

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