Exponentially Small Cosmological Constant in String Theory

We construct a supersymmetric vacuum of string theory in which the magnitude of the vacuum energy is <10^{-123} in Planck units. The mechanism that we introduce generates a well-controlled exponential hierarchy from an appropriate choice of the quantized parameters in the superpotential. Our appr...

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Bibliographic Details
Published inPhysical review letters Vol. 128; no. 1; p. 011602
Main Authors Demirtas, Mehmet, Kim, Manki, McAllister, Liam, Moritz, Jakob, Rios-Tascon, Andres
Format Journal Article
LanguageEnglish
Published United States 07.01.2022
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Summary:We construct a supersymmetric vacuum of string theory in which the magnitude of the vacuum energy is <10^{-123} in Planck units. The mechanism that we introduce generates a well-controlled exponential hierarchy from an appropriate choice of the quantized parameters in the superpotential. Our approach provides a new angle on the cosmological constant problem.
ISSN:1079-7114
DOI:10.1103/physrevlett.128.011602