Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes

Tatsuo Kobayashi; Hajime Otsuka

doi:10.1103/PhysRevD.102.026004

Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes

Tatsuo Kobayashi, Hajime Otsuka

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

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.

Original language	English
Article number	026004
Journal	Physical Review D
Volume	102
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevD.102.026004
Publication status	Published - Jul 15 2020
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.102.026004

Cite this

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title = "Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes",

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.",

author = "Tatsuo Kobayashi and Hajime Otsuka",

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N2 - 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.

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Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes

Abstract

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