On the Relation Between Open and Closed Topological Strings
Lev Rozansky, Anton Kapustin · Carolina Digital Repository (University of North Carolina at Chapel Hill) · 2021
We discuss the relation between open and closed string correlators using topological string theories as a toy model. We propose that one can reconstruct closed string correlators from the open ones by considering the Hochschild cohomology of the category of D-branes. We compute the Hochschild cohomology of the category of D-branes in topological Landau-Ginzburg models and partially verify the conjecture in this case.