Type-II Superstrings and New Spacetime Superalgebras

Details Type-II Superstrings and New Spacetime Superalgebras Type-II Superstrings and New Spacetime Superalgebras

1998-09-16

arxiv.org/abs/hep-th/9809113v2

Phys.Rev.D59:046007,1999

Physics

High Energy Physics

High Energy Physics - Theory

18 pages. Latex. typos fixed. references added

Scientific paper

10.1103/PhysRevD.59.046007

We present a geometric formulation of type-IIA and -IIB superstring theories in which the Wess-Zumino term is second order in the supersymmetric currents. The currents are constructed using supergroup manifolds corresponding to superalgebras: the IIA superalgebra derived from M-algebra and the IIB superalgebra obtained by a T-duality transformation of the IIA superalgebra. We find that a slight modification of the IIB superalgebra is needed to describe D-string theories, in which the U(1) gauge field on the worldsheet is explicitly constructed in terms of D-string charges. A unification of the superalgebras in a (10+1)-dimensional N=2 superalgebra is discussed too.

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