Doubled \(\alpha'\)-geometry
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Publication:270459
DOI10.1007/JHEP02(2014)065zbMATH Open1333.83190arXiv1306.2970MaRDI QIDQ270459
Author name not available (Why is that?)
Publication date: 7 April 2016
Published in: (Search for Journal in Brave)
Abstract: We develop doubled-coordinate field theory to determine the alpha' corrections to the massless sector of oriented bosonic closed string theory. Our key tool is a string current algebra of free left-handed bosons that makes O(D,D) T-duality manifest. While T-dualities are unchanged, diffeomorphisms and b-field gauge transformations receive corrections, with a gauge algebra given by an alpha'-deformation of the duality-covariantized Courant bracket. The action is cubic in a double metric field, an unconstrained extension of the generalized metric that encodes the gravitational fields. Our approach provides a consistent truncation of string theory to massless fields with corrections that close at finite order in alpha'.
Full work available at URL: https://arxiv.org/abs/1306.2970
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