Duality and the Signature of Space-Time

Details Duality and the Signature of Space-Time Duality and the Signature of Space-Time

1998-07-17

arxiv.org/abs/hep-th/9807127v5

JHEP 9811:017,1998

Physics

High Energy Physics

High Energy Physics - Theory

Minor changes. 52 pages, 14 Postscript figures, uses phyzzx macro

Scientific paper

10.1088/1126-6708/1998/11/017

Versions of M-theory are found in spacetime signatures (9,2) and (6,5), in addition to the usual M-theory in 10+1 dimensions, and these give rise to type IIA string theories in 10-dimensional spacetime signatures (10,0),(9,1),(8,2),(6,4) and (5,5), and to type IIB string theories in signatures (9,1),(7,3) and (5,5). The field theory limits are 10 and 11 dimensional supergravities in these signatures. These theories are all linked by duality transformations which can change the number of time dimensions as well as the number of space dimensions, so that each should be a different limit of the same underlying theory.

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