Archive of IAS Physics Group Meetings

This talk is based on my recent publication on Physical Review Letters in July 2014. http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.051801

I revisit some alternative mechanisms of gravitational wave production during Inflation and argue that they inevitably produce a large amount of scalar fluctuations. For an appreciable tensor contribution the associated scalar fluctuations...