N=2 Strings on Orbifolds

Details N=2 Strings on Orbifolds N=2 Strings on Orbifolds

2005-03-04

arxiv.org/abs/hep-th/0503043v3

JHEP 0508:008,2005

Physics

High Energy Physics

High Energy Physics - Theory

43 pages with no figures; structural changes; ref. added; target-space picture clarified

Scientific paper

10.1088/1126-6708/2005/08/008

We study closed N=2 strings on orbifolds of the form T^4/Z_2 and C^2/Z_2. We
compute the torus partition function and prove its modular invariance. We
analyse the BRST cohomology of the theory, construct the vertex operators, and
compute three and four point amplitudes of twisted and untwisted states. We
introduce a background of D-branes, and compute twist states correlators.

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