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arXiv · hep-th/9601175

Truly Strong Coupling and Large Radius in String Theory

Michael Dine·Yuri Shirman
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Abstract

String theory, if it describes nature, is probably strongly coupled. In light of recent developments in string duality, this means that the ``real world'' should correspond to a region of the classical moduli space which admits no weak coupling description. We exhibit, in the heterotic string, one such region of the moduli space, in which the coupling, $λ$, is large and the ``compactification radius'' scales as $λ^{1/3}$. We discuss some of the issues raised by the conjecture that the true vacuum lies in such a region. These include the question of coupling constant unification, and more generally the problem of what quantities one might hope to calculate and compare with experiment in such a picture.

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Michael Dine, Yuri Shirman. 1996-02-05. Truly Strong Coupling and Large Radius in String Theory. https://doi.org/10.1016/0370-2693(96)00316-4

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