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arXiv 2107.06900hep-thgr-qc
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四维零能条件作为一个沼泽猜想

The four-dimensional null energy condition as a swampland conjecture

Heliudson Bernardo, Suddhasattwa Brahma, Keshav Dasgupta, Mir Mehedi Faruk, Radu Tatar

摘要:

我们分析了四维Friedmann-Lemaitre-Robertson-Walker宇宙学在IIB型,产生于一个M-理论对偶,并发现零能量条件(NEC)必须服从他们(除了负弯曲的情况下),为了M-理论的行动有一个威尔逊有效的描述。然而,这并不意味着M理论度量必须服从11 d NEC。因此,我们提出了一个新的沼泽地猜想-4D NEC是一个一致性条件的任何理论有一个完整的M-理论-明确推导它的宇宙背景从自上而下的角度。我们简要地讨论了这样一个条件来自M-理论的宇宙学后果。

英文摘要:

We analyze four-dimensional Friedmann-Lemaitre-Robertson-Walker cosmologies in type IIB, arising from a M-theory dual, and find that the null energy condition (NEC) has to be obeyed by them (except for the negatively curved case) in order for the M-theory action to have a Wilsonian effective description. However, this does not imply that the M-theory metric has to obey the 11d NEC. Thus, we propose a new swampland conjecture -- the 4d NEC is a consistency condition for any theory to have a completion within M-theory -- with an explicit derivation of it for cosmological backgrounds from a top-down perspective. We briefly discuss the cosmological consequences of such a condition derived from M-theory.

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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