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arXiv · hep-th/9706195

Loop Corrections to the Universal Hypermultiplet

Andrew Strominger
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Abstract

The universal hypermultiplet arises as a subsector of every Calabi-Yau compactification of M-theory or Type II string theory. Classically its moduli space is the quaternionic space $SU(2,1)/U(2)$. We show that this moduli space receives a one-loop correction proportional to the Euler character of the Calabi-Yau, which can locally be absorbed by a certain constant shift of the fields. The correction vanishes in the limit that the Planck mass is taken to infinity, and hence is essentially gravitational in nature.

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Andrew Strominger. 1997-06-27. Loop Corrections to the Universal Hypermultiplet. https://doi.org/10.1016/s0370-2693(98)00015-x

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