# Topological D-branes from Descent

@article{Bergman2008TopologicalDF, title={Topological D-branes from Descent}, author={Aaron Bergman}, journal={arXiv: High Energy Physics - Theory}, year={2008} }

Witten couples the open topological B-model to a holomorphic vector bundle by adding to the boundary of the worldsheet a Wilson loop for an integrable connection on the bundle. Using the descent procedure for boundary vertex operators in this context, I generalize this construction to write a worldsheet coupling for a graded vector bundle with an integrable superconnection. I then compute the open string vertex operators between two such boundaries. A theorem of J. Block gives that this is…

## 3 Citations

### Boundary Coupling of Lie Algebroid Poisson Sigma Models and Representations up to Homotopy

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- 2012

A general form for the boundary coupling of a Lie algebroid Poisson sigma model is proposed. The approach involves using the Batalin–Vilkovisky formalism in the AKSZ geometrical version, to write a…

### Surface Operators in Four-Dimensional Topological Gauge Theory and Langlands Duality

- Mathematics
- 2010

We study surface and line operators in the GL-twisted N = 4 gauge theory in four dimensions. Their properties depend on the parameter t which determines the BRST operator of theory. For t = i we…

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