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arXiv 1902.08617hep-th
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关于Stringy de Sitter时空

On Stringy de Sitter Spacetimes

Per Berglund, Tristan Hübsch, Djordje Minic

摘要:

我们重新研究了一族在非平凡各向异性轴子介子背景下,在弦论标准树能级低能极限下得到的3+1维de Sitter时空模型。虽然这样的极限近似是令人鼓舞的,但不完整的,我们的分析揭示了一系列新的功能,并显示这些模型之间的标准和良好的理解超对称弦论的解决方案插值。最后,我们猜想这个德西特时空是通过包含更多的弦自由度而自然产生的,比如最近提出的相空间形式主义的变体,以及复杂的二维法诺簇的解析延拓作为卡-丘5重中的小分辨率而产生的。

英文摘要:

We reexamine a family of models with a 3+1-dimensional de Sitter spacetime obtained in the standard tree-level low-energy limit of string theory with a non-trivial anisotropic axion-dilaton background. While such limiting approximations are encouraging but incomplete, our analysis reveals a host of novel features, and shows these models to interpolate between standard and well understood supersymmetric string theory solutions. Finally, we conjecture that this de Sitter spacetime naturally arises by including more of the stringy degrees of freedom, such as a recently advanced variant of the phase-space formalism, as well as the analytic continuation of a complex two-dimensional Fano variety arising as a small resolution in a Calabi-Yau 5-fold.

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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