Open string field theory with stubs

Abstract

There are various reasons why adding stubs to the vertices of open string field theory (OSFT) is interesting: Not only the stubs can tame certain singularities and make the theory more well-behaved, but also the new theory shares a lot of similarities with closed string field theory, which helps to improve our understanding of its structure and possible solutions. In this paper we explore two natural ways of implementing stubs into the framework of OSFT, resulting in an A-infinity-algebra giving rise to infinitely many vertices. We find two distinct consistent actions, both generated by a field redefinition, interestingly sharing the same equations of motion. In the last section we illustrate their relationship and physical meaning by applying our construction to nearly marginal solutions.

22 pages

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Cited by in corpus (11)

• Open string stub as an auxiliary string field
• String vertices for the large $N$ limit
• Wilsonian effective potentials and closed string field theory
• More on stubs in open string field theory
• Topological recursion for hyperbolic string field theory
• Sliver frame stubs in OSFT via auxiliary fields
• Symplectic structure in open string field theory I: Rolling tachyons
• Symplectic structure in open string field theory III: Electric field
• $A_{\infty }$ perspective to Sen's formalism
• A consistent light-cone-gauge superstring field theory
• Singular field redefinition between Witten's string field theory and Witten's theory deformed by Ellwood invariant