Lifting M-theory to Two-Time Physics

Details Lifting M-theory to Two-Time Physics Lifting M-theory to Two-Time Physics

1999-04-08

arxiv.org/abs/hep-th/9904063v1

Phys.Lett. B457 (1999) 275-284

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 14 pages

Scientific paper

10.1016/S0370-2693(99)00582-1

M-theory has different global supersymmetry structures in its various dual incarnations, as characterized by the M-algebra in 11D, the type IIA, type-IIB, heterotic, type-I extended supersymmetries in 10D, and non-Abelian supersymmetries in the AdS_n x S^m backgrounds. We show that all of these supersymmetries are unified within the supersymmetry OSp(1/64), thus hinting that the overall global spacetime symmetry of M-theory is OSp(1/64). We suggest that the larger symmetries contained within OSp(1/64) which go beyond the familiar symmetries, are non-linearly realized hidden symmetries of M-theory. These can be made manifest by lifting 11D M-theory to the formalism of two-time physics in 13D by adding gauge degrees of freedom. We illustrate this idea by constructing a toy M-model on the worldline in 13D with manifest OSp(1/64) global supersymmetry, and a number of new local symmetries that remove ghosts. Some of the local symmetries are bosonic cousins of kappa supersymmetries. The model contains 0-superbrane and p-forms (for p=3,6) as degrees of freedom. The gauge symmetries can be fixed in various ways to come down to a one time physics model in 11D, 10D, AdS_n x S^m, etc., such that the linearly realized part of OSp(1/64) is the global symmetry of the various dual sectors of M-theory.

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