Double-Spinor Superstrings on Coset Superspaces

Details Double-Spinor Superstrings on Coset Superspaces Double-Spinor Superstrings on Coset Superspaces

2008-09-29

arxiv.org/abs/0809.4895v4

Prog.Theor.Phys.120:1029-1040,2008

Physics

High Energy Physics

High Energy Physics - Theory

14pages, no figure, PTPTeX; v2, references added; v3, english is improved, version appeared in PTP; v4, a reference added

Scientific paper

10.1143/PTP.120.1029

The double-spinor formalism, proposed by Aisaka and Kazama, provides a basis for the pure-spinor formalism, which allows manifestly super-Poincare covariant quantization of superstrings. We extend it to the case of backgrounds realized by coset superspaces. A general method constructing reparametrization invariant action is given using two concrete examples, the flat space-time and AdS(5)xS(5). We find that it is natural to double not only the spinor coordinates but the whole superspace for describing double-spinor superstrings on such backgrounds. The reparametrization invariant action has local symmetries compensating those extra degrees of freedom, which guarantee the equivalence to the Green-Schwarz formalism.

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