期刊
NUCLEAR PHYSICS B
卷 718, 期 1-2, 页码 203-246出版社
ELSEVIER
DOI: 10.1016/j.nuclphysb.2005.04.011
关键词
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Using a Kaluza-Klein reduction of the fermionic part of the D-brane action we compute D- and F-terms of the N = 1 effective action for generic Calabi-Yau orientifold compactifications in the presence of a space-time filling D7-brane. We include non-trivial background fluxes for the D7-brane U (1) field strength on the internal four-cycle wrapped by the brane. First the four-dimensional fermionic spectrum arising from the D7-brane is derived and then the D- and F-terms are obtained by computing appropriate couplings of these fermionic fields. For specific examples we examine the resulting flux-induced scalar potentials and comment on their relevance in string cosmology. (c) 2005 Elsevier B.V. All rights reserved.
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