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arXiv · 2504.10061

BSFT-like action from cohomomorphism

Jojiro Totsuka-Yoshinaka
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Abstract

By performing a field redefinition via a cohomomorphism on the Maurer-Cartan action of the $A_\infty$ algebra, we construct an action that reproduces the characteristic structure of boundary string field theory (BSFT), which we refer to as the BSFT-like action. We show that the form and several properties of this BSFT-like action closely resemble those of BSFT. Our results suggest that this approach provides a systematic framework to derive the BSFT action from the OSFT based on $A_\infty$ algebras.

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Jojiro Totsuka-Yoshinaka. 2025-04-14. BSFT-like action from cohomomorphism. https://arxiv.org/abs/2504.10061

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