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| Report/Dissertation / PhD Thesis | PUBDB-2016-02038 |
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2005
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Please use a persistent id in citations: doi:10.3204/DESY-THESIS-2005-025
Report No.: DESY-THESIS-2005-025; ZMP-HH-05-13; hep-th/0507042
Abstract: In this review article we study type IIB superstring compactifications in the presence of space-time filling D-branes while preserving N=1 supersymmetry in the effective four-dimensional theory. This amount of unbroken supersymmetry and the requirement to fulfill the consistency conditions imposed by the space-time filling D-branes lead to Calabi-Yau orientifold compactifications. For a generic Calabi-Yau orientifold theory with space-time filling D3- or D7-branes we derive the low-energy spectrum. In a second step we compute the effective N=1 supergravity action which describes in the low-energy regime the massless open and closed string modes of the underlying type IIB Calabi-Yau orientifold string theory. These N=1 supergravity theories are analyzed and in particular spontaneous supersymmetry breaking induced by non-trivial background fluxes is studied. For D3-brane scenarios we compute soft-supersymmetry breaking terms resulting from bulk background fluxes whereas for D7-brane systems we investigate the structure of D- and F-terms originating from worldvolume D7-brane background fluxes. Finally we relate the geometric structure of D7-brane Calabi-Yau orientifold compactifications to N=1 special geometry.
Keyword(s): thesis ; string model ; supersymmetry ; compactification ; membrane model: D-brane ; membrane model: p-brane ; effective action ; space: Calabi-Yau ; orientifold ; Kaluza-Klein model ; background field ; soliton: BPS ; supergravity ; moduli space ; particle: multiplet ; bibliography
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Journal Article
The Effective action of D-branes in Calabi-Yau orientifold compactifications
Fortschritte der Physik <Weinheim> 53(10), 1087-1175 (2005) [10.1002/prop.200510252] = Universität Hamburg, Diss., 2005
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