The Effective Action and Geometry of Closed N=2 Strings

Autor:	Dan Gluck, Yaron Oz, Tadakatsu Sakai
Rok vydání:	2003
Předmět:	Physics High Energy Physics - Theory Nuclear and High Energy Physics High Energy Physics::Theory General Relativity and Quantum Cosmology High Energy Physics - Theory (hep-th) Scalar (mathematics) FOS: Physical sciences Dilaton Curvature Effective action Mathematical physics
DOI:	10.48550/arxiv.hep-th/0304103
Popis:	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. Comment: 1+12pages, latex2e, v2: a reference and footnote added, v3: a section added with an example of a gravitational background of the \alpha-string, references added
Databáze:	OpenAIRE
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