Coupling of Rolling Tachyon to Closed Strings
High Energy Physics - Theory
2014-11-18 v3
Abstract
We study the late time behavior of the boundary state representing the rolling tachyon constructed by Sen. It is found that the coupling of the rolling tachyon to massive modes of the closed string grows exponentially as the system evolves. We argue that the description of rolling tachyon by a boundary state is valid during the finite time determined by string coupling, and that energy could be dissipated to the bulk beyond this time. We also comment on the relation between the rolling tachyon boundary state and the spacelike D-brane boundary state.
Cite
@article{arxiv.hep-th/0208196,
title = {Coupling of Rolling Tachyon to Closed Strings},
author = {T. Okuda and S. Sugimoto},
journal= {arXiv preprint arXiv:hep-th/0208196},
year = {2014}
}
Comments
18 pages, no figure; v2, reference added, minor corrections; v3, final version that appeared in Nucl.Phys. B