Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes


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Title:	Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes
Authors:	Kobayashi, Tatsuo Browse this author →KAKEN DB
Authors:	Otsuka, Hajime Browse this author
Issue Date:	7-Jul-2020
Publisher:	American Physical Society (APS)
Journal Title:	Physical Review D
Volume:	102
Issue:	2
Start Page:	026004
Publisher DOI:	10.1103/PhysRevD.102.026004
Abstract:	We systematically investigate the possibilities of realizing the spontaneous CP violation in Type IIB flux compactifications on toroidal orientifolds. Our detailed analysis for a generic choice of three-form fluxes leads to the presence of flat directions, where CP-breaking and -conserving vacua are degenerate, 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.
Rights:	https://creativecommons.org/licenses/by/4.0/
Type:	article
URI:	http://hdl.handle.net/2115/79083
Appears in Collections:	理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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