期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 11, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP11(2014)160
关键词
Superstrings and Heterotic Strings; Differential and Algebraic Geometry; Supergravity Models; Flux compactifications
资金
- ERC Starting Grant - ObservableString [259133]
- German Research Foundation DFG within the Cluster of Excellence QUEST
- Agence Nationale de la Recherche [12-BS05-003-01]
- EPSRC Programme Grant New Geometric Structures from String Theory [EP/K034456/1]
- STFC Consolidated Grant [ST/J0003533/1]
- Engineering and Physical Sciences Research Council [EP/K034456/1] Funding Source: researchfish
- Science and Technology Facilities Council [ST/L00044X/1, ST/J000353/1] Funding Source: researchfish
- European Research Council (ERC) [259133] Funding Source: European Research Council (ERC)
- EPSRC [EP/K034456/1] Funding Source: UKRI
- STFC [ST/J000353/1, ST/L00044X/1] Funding Source: UKRI
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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