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We describe a method for finding flux vacua of type IIB string theory in which the Gukov-Vafa-Witten superpotential is exponentially small. We present an example with W₀≈2×10^-8 on an orientifold of a Calabi-Yau hypersurface with (h1,1,h2,1)=(2,272), at large complex structure and weak string coupling.
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Demirtaş et al. (2020) studied this question.
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