Chennai Mathematical Institute


2.15 p.m.
Quantum Tunneling with the DBI Action

Saswat Sarangi
Columbia University, USA.


Lately the DBI action has been put to use in various cosmological scenarios, e.g. brane inflation. We study another aspect : Coleman-De Luccia vacuum decay in brane worlds. As with other cosmological cases, we find a new effect that gives the usual CDL result a DBI correction.