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arXiv · hep-th/0201033

String with noncommutative world-sheet and stringy instantons

I. V. Gorbunov·A. A. Sharapov
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Abstract

The model of the bosonic string with the noncommutative world-sheet geometry is proposed in the framework of Fedosov's deformation quantization. The re-interpretation of the model in terms of bosonic string coupled to infinite multiplet of background fields is given and the link to the W-symmetry is discussed. For the case of d=4 Euclidean target space, the stringy counterparts of the Yang-Mills instantons are constructed in both commutative and noncommutative regimes.

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I. V. Gorbunov, A. A. Sharapov. 2002-01-14. String with noncommutative world-sheet and stringy instantons. https://doi.org/10.1016/s0370-2693(02)01500-9

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