Is Brane Inflation Eternal?


Sarangi, S. (2006). Is Brane Inflation Eternal?. Perimeter Institute. https://pirsa.org/06110015


Sarangi, Saswat. Is Brane Inflation Eternal?. Perimeter Institute, Nov. 21, 2006, https://pirsa.org/06110015


          @misc{ pirsa_PIRSA:06110015,
            doi = {10.48660/06110015},
            url = {https://pirsa.org/06110015},
            author = {Sarangi, Saswat},
            keywords = {Cosmology},
            language = {en},
            title = {Is Brane Inflation Eternal?},
            publisher = {Perimeter Institute},
            year = {2006},
            month = {nov},
            note = {PIRSA:06110015 see, \url{https://pirsa.org}}


It will be shown that eternal inflation of the random walk type is generically absent in the brane inflationary scenario. Eternal inflation will be analysed both in the context of KKLMMT and the DBI inflationary models. A Langevin analysis will be employed for a more careful treatment. The DBI action, and the relativistic nature of the brane motion in DBI inflationary model, leads to new subtleties in formulating a Langevin approach.