Nuclear Physics B, ( ISI ), Year (2000-5)

Title : Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action ( Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action )

Authors: Mohammad Reza Garousi ,

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By explicit evaluation of certain disk S-matrix elements in the presence of background B-flux, we find coupling of two open string tachyons to gauge field, graviton, dilaton or Kalb-Ramond antisymmetric tensor on the world-volume of a single non-BPS D$p$-brane. We then propose an extension of the abelian Dirac-Born-Infeld action which naturally reproduces these couplings in field theory. This action includes non-linearly the dynamics of the tachyon field much like the other bosonic modes of the non-BPS D$p$-brane. On the general grounds of gauge and T-duality transformations and the symmetrized trace prescription, we then extend the abelian action to non-abelian cases.

Keywords

, Tachyon, Non-BPS
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@article{paperid:317,
author = {Garousi, Mohammad Reza},
title = {Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action},
journal = {Nuclear Physics B},
year = {2000},
month = {May},
issn = {0550-3213},
keywords = {Tachyon;Non-BPS D-branes},
}

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%0 Journal Article
%T Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action
%A Garousi, Mohammad Reza
%J Nuclear Physics B
%@ 0550-3213
%D 2000

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