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arXiv · 1305.1907

Double Field Theory: A Pedagogical Review

Gerardo Aldazabal·Diego Marques·Carmen Nunez
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Abstract

Double Field Theory (DFT) is a proposal to incorporate T-duality, a distinctive symmetry of string theory, as a symmetry of a field theory defined on a double configuration space. The aim of this review is to provide a pedagogical presentation of DFT and its applications. We first introduce some basic ideas on T-duality and supergravity in order to proceed to the construction of generalized diffeomorphisms and an invariant action on the double space. Steps towards the construction of a geometry on the double space are discussed. We then address generalized Scherk-Schwarz compactifications of DFT and their connection to gauged supergravity and flux compactifications. We also discuss U-duality extensions, and present a brief parcours on world-sheet approaches to DFT. Finally, we provide a summary of other developments and applications that are not discussed in detail in the review.

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Gerardo Aldazabal, Diego Marques, Carmen Nunez. 2013-08-12. Double Field Theory: A Pedagogical Review. https://doi.org/10.1088/0264-9381%2F30%2F16%2F163001

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