Cosmology of Rolling Tachyon

Abstract

We study dynamics of rolling tachyon and Abelian gauge field on unstable D-branes, of which effective action is given by Born-Infeld type nonlocal action. Possible cosmological evolutions are also discussed. In the Einstein frame of string cosmology, every expanding flat universe is proven to be decelerating.

LaTex, 27 pages, 2 figures, Proceedings of Pac Memorial Symposium on Theoretical Physics, pp.209--239 (Chungbum Publishing House, Seoul). Talk was given by Y. Kim

Cited by in corpus (7)

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• Slowly varying tachyon and tachyon potential
• Caustic Formation in Tachyon Effective Field Theories
• Notes on Tachyon Effective Actions and Veneziano Amplitudes
• Backreaction and the rolling tachyon -- an effective action point of view
• Noncommutative Tachyon Kinks as D$(p-1)$-branes from Unstable D$p$-brane
• Breathers in the elliptic sine-Gordon model