T-folds from Yang-Baxter deformations

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Title
T-folds from Yang-Baxter deformations
Author(s)
Jos´e J. Fern´andez-Melgarejo; Jun-ichi Sakamoto; Yuho Sakatani; Kentaroh Yoshida
Publication Date
2017-12
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v., no.12, pp.108 -
Publisher
SPRINGER
Abstract
Yang-Baxter (YB) deformations of type IIB string theory have been well studied from the viewpoint of classical integrability. Most of the works, however, are focused upon the local structure of the deformed geometries and the global structure still remains unclear. In this work, we reveal a non-geometric aspect of YB-deformed backgrounds as T-fold by explicitly showing the associated O(D, D; Z) T-duality monodromy. In particular, the appearance of an extra vector field in the generalized supergravity equations (GSE) leads to the non-geometric Q-flux. In addition, we study a particular solution of GSE that is obtained by a non-Abelian T-duality but cannot be expressed as a homogeneous YB deformation, and show that it can also be regarded as a T-fold. This result indicates that solutions of GSE should be non-geometric quite in general beyond the YB deformation. c The Authors .
URI
https://pr.ibs.re.kr/handle/8788114/6202
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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