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arXiv · hep-th/0506263

Topological Heterotic Rings

Allan Adams·Jacques Distler·Morten Ernebjerg
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Abstract

We prove the existence of topological rings in (0,2) theories containing non-anomalous left-moving U(1) currents by which they may be twisted. While the twisted models are not topological, their ground operators form a ring under non-singular OPE which reduces to the (a,c) or (c,c) ring at (2,2) points and to a classical sheaf cohomology ring at large radius, defining a quantum sheaf cohomology away from these special loci. In the special case of Calabi-Yau compactifications, these rings are shown to exist globally on the moduli space if the rank of the holomorphic bundle is less than eight.

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Allan Adams, Jacques Distler, Morten Ernebjerg. 2005-06-30. Topological Heterotic Rings. https://arxiv.org/abs/hep-th/0506263

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