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Complex World-Sheets from N=2 Strings

J. L. F. Barbon·M. A. Vazquez-Mozo
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Abstract

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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J. L. F. Barbon, M. A. Vazquez-Mozo. 1996-05-08. Complex World-Sheets from N=2 Strings. https://doi.org/10.1016/0550-3213(96)00330-6

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