2003/04/30 by Dan Gluck, Dan Glück, Yaron Oz +1 · 1 citation
Computer Science · Physics and Astronomy · #Algorithms and Data Compression #Black Holes and Theoretical Physics #hep-th
paper · pdf · doi:10.1088/1126-6708/2003/07/007
published as JHEP 0307:007,2003 · 1+12pages, latex2e, v2: a reference and footnote added, v3: a section added with an example of a gravitational background of the α-string, references added
openalex publication_date 2003/07/02 · arxiv created 2003/08/26 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
N=2 closed strings have been recently divided in hep-th/0211147 to two T-dual families denoted by αand β. In (2,2) signature both families have one scalar in the spectrum. The scalar in the β-string is known to be a deformation of the target space Kähler potential and the dynamics is that of self-dual gravity. In this paper we compute the effective action of the scalar in the α-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.