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Vacuum Stability in Heterotic M-Theory

Evgeny I. Buchbinder·Burt A. Ovrut
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Abstract

The problem of the stabilization of moduli is discussed within the context of compactified strongly coupled heterotic string theory. It is shown that all geometric, vector bundle and five-brane moduli are completely fixed, within a phenomenologically acceptable range, by non-perturbative physics. This result requires, in addition to the full space of moduli, non-vanishing Neveu-Schwarz flux, gaugino condensation with threshold corrections and the explicit form of the Pfaffians in string instanton superpotentials. The stable vacuum presented here has a negative cosmological constant. The possibility of ``lifting'' this to a metastable vacuum with positive cosmological constant is briefly discussed.

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Evgeny I. Buchbinder, Burt A. Ovrut. 2004-06-29. Vacuum Stability in Heterotic M-Theory. https://doi.org/10.1103/physrevd.69.086010

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