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arXiv 2105.03370hep-thastro-ph.COgr-qchep-ph
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一个新的具有弱翘曲变形锥折叠的de Sitter解

A New de Sitter Solution with a Weakly Warped Deformed Conifold

Bruno Valeixo Bento, Dibya Chakraborty, Susha L. Parameswaran, Ivonne Zavala

摘要:

我们重新审视模量稳定的IIB型通量紧致化,包括一个扭曲的喉咙区域对应于一个扭曲变形的锥状,与反D3膜坐在其尖端。翘曲诱导锥的变形模量和Kähler势中的体积模量之间的耦合。以前的工作已经研究了标量势假设一个强大的翘曲,使这个耦合项占主导地位,并发现反D3膜隆起可能会破坏conifold模量和/或体积模量,除非流量的喉内的数量是大的,这使得蝌蚪取消一个挑战。我们探索了与弱但仍然扭曲的喉道相对应的参数空间的状态,使得锥形和体积模量之间的耦合是次主导的。因此,我们发现了一个新的亚稳态deSitter解决方案内的四维有效场论。我们讨论这个德西特真空在弦论景观和沼泽地中的位置。

英文摘要:

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 Kähler 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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