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arxiv: hep-th/0301142 · v1 · submitted 2003-01-20 · ✦ hep-th

Cosmology of Rolling Tachyon

classification ✦ hep-th
keywords actioncosmologyrollingtachyonabelianborn-infeldcosmologicald-branes
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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.

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