Decaying D-branes and Moving Mirrors

Details Decaying D-branes and Moving Mirrors Decaying D-branes and Moving Mirrors

2008-04-08

arxiv.org/abs/0804.1176v2

JHEP 0805:089,2008

Physics

High Energy Physics

High Energy Physics - Theory

26pages, 4 figures, Latex, typos corrected

Scientific paper

10.1088/1126-6708/2008/05/089

We present an exact time-dependent solution to the effective D-brane world-volume theory which describes an inhomogeneous decay of a brane-antibrane system. We compute the quantum energy flux induced by the particle creation in this inhomogeneous and time-dependent background. We find that this calculation is essentially equivalent to that of the moving mirror system. In the initial stage, the energy flux turns out to be thermal with the temperature given by the inverse of the distance between the brane and the antibrane. Later it changes its sign and becomes a negative energy flux. Our result may be relevant for the (p)reheating process or/and the evolution of cosmic string network after stringy brane inflation.

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