Complex World-Sheets from N=2 Strings

Details Complex World-Sheets from N=2 Strings Complex World-Sheets from N=2 Strings

1996-05-08

arxiv.org/abs/hep-th/9605050v1

Nucl.Phys. B475 (1996) 244-272

Physics

High Energy Physics

High Energy Physics - Theory

32 pages, harvmac

Scientific paper

10.1016/0550-3213(96)00330-6

We study some properties of target space strings constructed from (2,1) heterotic strings. We argue that world-sheet complexification is a general property of the bosonic sector of such target world-sheets. We give a target space interpretation of this fact and relate it to the non-gaussian nature of free String Field Theory. We provide several one loop calculations supporting the stringy construction of critical world-sheets in terms of (2,1) models. Using finite temperature boundary conditions in the underlying (2,1) string we obtain non-chiral target space spin structures, and point out some of the problems arising for chiral spin structures, such as the heterotic world-sheet. To this end, we study the torus partition function of the corresponding asymmetric orbifold of the (2,1) string.

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