Gravitational waves from density perturbations

Add to your list(s) Download to your calendar using vCal

• Kazuya Koyama (ICG, Portsmouth)
• Wednesday 04 November 2009, 14:15-15:15
• MR3, Centre for Mathematical Sciences.

If you have a question about this talk, please contact Baojiu Li.

In this talk, I review second order generation of gravitational waves from first order density perturbations. The second order gravitational waves could provide us valuable information on density perturbations at very small scales where we do not have any direct way to measure density perturbations. We first discuss the second order tensor perturbations during inflation and how they evolve in the radiation dominated era after inflation. We carefully examine the gauge dependence of the tensor perturbations at second order. We also consider generation of second order tensor perturbations in matter dominated era either in early universe after reheating and in the late time universe.

This talk is part of the Theoretical Physics Colloquium series.

This talk is included in these lists:

• All CMS events
• All Talks (aka the CURE list)
• CMS Events
• Cambridge Astronomy Talks
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• DAMTP info aggregator
• HEP web page aggregator
• Kavli Institute for Cosmology Talk Lists
• MR3, Centre for Mathematical Sciences
• Priscilla
• Theoretical Physics Colloquium
• bld31

Note that ex-directory lists are not shown.