期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP12(2021)124
关键词
Flux compactifications; Superstring Vacua
资金
- Theoretical Physics group at University of Liverpool
- STFC [ST/P00055X/1]
- CONACyT Mexico grant
- Beca-Mixta CONACyT
- DAIP-UG (2018/2019)
The study revisits the problem of moduli stabilization in type IIB flux compactifications, focusing on a warped throat region. A new metastable de Sitter solution is discovered, providing insights into the landscape and swampland of string theory.
We revisit moduli stabilisation for type IIB flux compactifications that include a warped throat region corresponding to a warped deformed conifold, with an anti-D3-brane sitting at its tip. The warping induces a coupling between the conifold's deformation modulus and the bulk volume modulus in the Kahler potential. Previous works have studied the scalar potential assuming a strong warping such that this coupling term dominates, and found that the anti-D3-brane uplift may destabilise the conifold modulus and/or volume modulus, unless flux numbers within the throat are large, which makes tadpole cancellation a challenge. We explore the regime of parameter space corresponding to a weakly-but-still warped throat, such that the coupling between the conifold and volume moduli is subdominant. We thus discover a new metastable de Sitter solution within the four-dimensional effective field theory. We discuss the position of this de Sitter vacuum in the string theory landscape and swampland.
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