异质弦理论中的德西特态

Stephon Alexander, Keshav Dasgupta, Archana Maji, Pichai Ramadevi, Radu Tatar
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引用次数: 0

摘要

最近的 "不行 "定理排除了异质弦理论中的四维经典德西特虚空。另一方面,缺乏定义明确的威尔逊有效作用和其他相关现象似乎也排除了这种具有德西特等距的时变空域,即使存在量子修正。在这篇论文中,作者认为在异质弦理论中,四维德西特空间仍然可以作为超对称闵科夫斯基背景上的格劳伯-苏达山态(即激发态)存在,尽管是在有限时域内。在完全由红外自由度支配的异质弦理论的希尔伯特空间中构建这样一个态时,玻尔重和与回升起着至关重要的作用。
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de Sitter State in Heterotic String Theory
Recent no‐go theorems have ruled out four‐dimensional classical de Sitter vacua in heterotic string theory. On the other hand, the absence of a well‐defined Wilsonian effective action and other related phenomena also appear to rule out such time‐dependent vacua with de Sitter isometries, even in the presence of quantum corrections. In this note, the authors argued that a four‐dimensional de Sitter space can still exist in heterotic string theory as a Glauber–Sudarshan state, i.e., as an excited state, over a supersymmetric Minkowski background, albeit within a finite temporal domain. Borel resummation and resurgence play a crucial role in constructing such a state in the Hilbert space of heterotic theory governed entirely by the IR degrees of freedom.
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