The Effective Action and Geometry of Closed N=2 Strings

Details The Effective Action and Geometry of Closed N=2 Strings The Effective Action and Geometry of Closed N=2 Strings

2003-04-10

arxiv.org/abs/hep-th/0304103v3

JHEP 0307:007,2003

Physics

High Energy Physics

High Energy Physics - Theory

1+12pages, latex2e, v2: a reference and footnote added, v3: a section added with an example of a gravitational background of t

Scientific paper

10.1088/1126-6708/2003/07/007

N=2 closed strings have been recently divided in hep-th/0211147 to two T-dual families denoted by \alpha and \beta. In (2,2) signature both families have one scalar in the spectrum. The scalar in the \beta-string is known to be a deformation of the target space K\"ahler potential and the dynamics is that of self-dual gravity. In this paper we compute the effective action of the scalar in the \alpha-string. The scalar is a deformation of a potential that determines the metric, torsion and dilaton. The scalar is free and the dynamics is that of a self-dual curvature with torsion.

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