2017/03/31 by Jun-ichi Sakamoto, Yuho Sakatani, Kentaroh Yoshida · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Covariant transformation #Equations of motion #Formalism (music) #Non-critical string theory #Noncommutative and Quantum Gravity Theories #Sigma model #String field theory #String theory #Supergravity #Superstring theory #hep-th
paper · pdf · doi:10.1093/ptep/ptx067
published as PTEP (2017) 053B07 · 28 pages; v2: typos corrected, clarifications added; v3: typos corrected, references added, to appear in PTEP
openalex created_date 2017/04/07 · openalex publication_date 2017/04/28 · arxiv created 2017/05/24 · arxiv updated 2017/05/30 · openalex updated_date 2026/08/05
It has recently been shown that a set of the generalized type IIB supergravity equations follows from the requirement of kappa symmetry of the type IIB Green-Schwarz superstring theory defined on an arbitrary background. In this paper, we show that the whole bosonic part of the generalized type II supergravity equations can be reproduced from the T-duality covariant equations of motion of the double field theory by choosing a non-standard solution of the strong constraint. Then, by using the doubled formalism, we show the Weyl invariance of the bosonic string sigma model on a generalized gravity background. According to the dual-coordinate dependence of the dilaton, the Fradkin-Tseytlin term nicely removes the Weyl anomaly. This result seems likely to support that string theories can be consistently defined on arbitrary generalized supergravity backgrounds.