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Supersymmetry, p -brane duality, and hidden spacetime dimensions

1996; American Physical Society; Volume: 54; Issue: 8 Linguagem: Inglês

10.1103/physrevd.54.5203

1538-4500

Itzhak Bars,

Cosmology and Gravitation Theories

A global superalgebra with 32 supercharges and all possible central extensions is studied in order to extract some general properties of duality and hidden dimensions in a theory that treats $p$-branes democratically. The maximal number of dimensions is 12, with signature (10,2), containing one space and one time dimensions that are hidden from the point of view of perturbative 10-dimensional string theory or its compactifications. When the theory is compactified on $R^{d-1,1}\otimes T^{c+1,1}$ with $d+c+2=12,$ there are isometry groups that relate to the hidden dimensions as well as to duality. Their combined classification schemes provide some properties of non-perturbative states and their couplings.