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Journal Articles Journal of High Energy Physics Year : 2014

Generalised geometry for string corrections

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Abstract

We present a general formalism for incorporating the string corrections in generalised geometry, which necessitates the extension of the generalised tangent bundle. Not only are such extensions obstructed, string symmetries and the existence of a well-defined effective action require a precise choice of the (generalised) connection. The action takes a universal form given by a generalised Lichnerowitz--Bismut theorem. As examples of this construction we discuss the corrections linear in $\alpha'$ in heterotic strings and the absence of such corrections for type II theories.
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Dates and versions

cea-01310358 , version 1 (02-05-2016)

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André Coimbra, Ruben Minasian, Hagen Triendl, Daniel Waldram. Generalised geometry for string corrections. Journal of High Energy Physics, 2014, 2014, pp.160. ⟨10.1007/JHEP11(2014)160⟩. ⟨cea-01310358⟩
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