Canonical differential geometry of string backgrounds

Details Canonical differential geometry of string backgrounds Canonical differential geometry of string backgrounds

2005-11-15

arxiv.org/abs/hep-th/0511157v2

JHEP0602:059,2006

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, no figures, improved journal version

Scientific paper

10.1088/1126-6708/2006/02/059

String backgrounds and D-branes do not possess the structure of Lorentzian manifolds, but that of manifolds with area metric. Area metric geometry is a true generalization of metric geometry, which in particular may accommodate a B-field. While an area metric does not determine a connection, we identify the appropriate differential geometric structure which is of relevance for the minimal surface equation in such a generalized geometry. In particular the notion of a derivative action of areas on areas emerges naturally. Area metric geometry provides new tools in differential geometry, which promise to play a role in the description of gravitational dynamics on D-branes.

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