Twisting the N=2 String

Details Twisting the N=2 String Twisting the N=2 String

1993-12-16

arxiv.org/abs/hep-th/9312150v2

Phys.Rev. D51 (1995) 2872-2890

Physics

High Energy Physics

High Energy Physics - Theory

42 pages, LaTeX, no figures, 120 kb, ITP-UH-24/93, DESY 93-191 (abstract and introduction clarified, minor corrections added)

Scientific paper

10.1103/PhysRevD.51.2872

The most general homogeneous monodromy conditions in $N{=}2$ string theory are classified in terms of the conjugacy classes of the global symmetry group $U(1,1)\otimes{\bf Z}_2$. For classes which generate a discrete subgroup $\G$, the corresponding target space backgrounds ${\bf C}^{1,1}/\G$ include half spaces, complex orbifolds and tori. We propose a generalization of the intercept formula to matrix-valued twists, but find massless physical states only for $\Gamma{=}{\bf 1}$ (untwisted) and $\Gamma{=}{\bf Z}_2$ (\`a la Mathur and Mukhi), as well as for $\Gamma$ being a parabolic element of $U(1,1)$. In particular, the sixteen ${\bf Z}_2$-twisted sectors of the $N{=}2$ string are investigated, and the corresponding ground states are identified via bosonization and BRST cohomology. We find enough room for an extended multiplet of `spacetime' supersymmetry, with the number of supersymmetries being dependent on global `spacetime' topology. However, world-sheet locality for the chiral vertex operators does not permit interactions among all massless `spacetime' fermions.

Affiliated with

Also associated with

No associations

Rating

Twisting the N=2 String does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Twisting the N=2 String, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Twisting the N=2 String will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-437779