Open-closed homotopy algebra in superstring field theory

Abstract

We construct open-closed superstring interactions based on the open-closed homotopy algebra structure. It provides a classical open superstring field theory on general closed-superstring-field backgrounds described by classical solutions of the nonlinear equation of motion of the closed superstring field theory. We also give the corresponding WZW-like action through the map connecting the homotopy-based and WZW-like formulations.

28 pages, v2: references added, v3: an appendix is added, v4: some typos corrected