On four-derivative terms in IIB Calabi-Yau orientifold reductions

被引：0
作者：
Matthias Weissenbacher
机构：
[1] University of Tokyo,Kavli Institute for the Physics and Mathematics of the Universe
来源：
Journal of High Energy Physics | / 2017卷
关键词：
Flux compactifications; Classical Theories of Gravity; Supersymmetric Effective Theories;
D O I：
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摘要：
We perform a Kaluza-Klein reduction of IIB supergravity including purely gravitational α′3-corrections on a Calabi-Yau threefold, and perform the orientifold projection accounting for the presence of O3/O7-planes. We consider infinitesimal Kähler deformations of the Calabi-Yau background and derive the complete set of four-derivative couplings quadratic in these fluctuations coupled to gravity. In particular, we find four-derivative couplings of the Kähler moduli fields in the four-dimensional effective supergravity theory, which are referred to as friction couplings in the context of inflation.
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