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arXiv · hep-th/0404196

F-term equations near Gepner points

Kentaro Hori·Johannes Walcher
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Abstract

We study marginal deformations of B-type D-branes in Landau-Ginzburg orbifolds. The general setup of matrix factorizations allows for exact computations of F-term equations in the low-energy effective theory which are much simpler than in a corresponding geometric description. We present a number of obstructed and unobstructed examples in detail, including one in which a closed string modulus is obstructed by the presence of D-branes. In a certain example, we find a non-trivial global structure of the BRST operator on the moduli space of branes.

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Kentaro Hori, Johannes Walcher. 2004-10-07. F-term equations near Gepner points. https://doi.org/10.1088/1126-6708%2F2005%2F01%2F008

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