Gravitational Radiation of Rolling Tachyon

Details Gravitational Radiation of Rolling Tachyon Gravitational Radiation of Rolling Tachyon

2002-09-26

arxiv.org/abs/hep-th/0209222v3

JHEP 0211 (2002) 050

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 1 figure; v2 correct typos, add references & acknowledgement; v3 final to appear on JHEP with minor comment and refe

Scientific paper

10.1088/1126-6708/2002/11/050

In this paper we compute the radiation of the massless closed string states due to the non-vanishing coupling to the rolling open string tachyon with co-dimensions larger than 2, and discuss the effect of back reaction to the motion of the rolling tachyon. We find that for small string coupling, the tachyonic matter remains in the late time, but it will completely evaporate away over a short time of few string scales if the string coupling is huge. Comment on the implication of our results to the g-theorem of boundary conformal field theory is given.

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