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arXiv · 2004.04518

Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes

Tatsuo Kobayashi·Hajime Otsuka
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Abstract

We systematically investigate possibilities of realizing the spontaneous CP violation in Type IIB flux compactifications on toroidal orientifolds. Our detailed analysis leads to the presence of flat directions at degenerate CP-breaking and -conserving vacua for a generic choice of three-form fluxes, indicating that flux compactifications are not sufficient to realize the spontaneous CP violation. Furthermore, the four-dimensional CP can be embedded into the duality symmetries, namely modular symmetries for a particular choice of fluxes.

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Tatsuo Kobayashi, Hajime Otsuka. 2020-04-09. Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes. https://doi.org/10.1103/physrevd.102.026004

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