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Exciting gauge field and gravitons in a brane-anti-brane annihilation

Research output: Contribution to journalJournal article


Journal publication date2009
JournalPhysical Review Letters
Original languageEnglish


In this paper we point out the inevitability of an explosive production of gauge field and gravity wave during an open string tachyon condensation in a cosmological setting. We will be particularly studying an example of brane-anti-brane inflation in a warped throat where inflation ends via tachyon condensation. We point out that a tachyonic instability helps fragmenting the homogeneous tachyon and excites gauge field and contributes to the stress energy tensor which also feeds into the gravity waves.

Bibliographic note

4 pages 8 figs