%0 Journal Article
%T Loop Corrections to the Universal Hypermultiplet
%A Andrew Strominger
%J Physics
%D 1997
%I arXiv
%R 10.1016/S0370-2693(98)00015-X
%X 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.
%U http://arxiv.org/abs/hep-th/9706195v2