Boundary modes in string field theory

Abstract We discuss the construction of boundary contributions to free string field theory actions in the context of the bosonic string. We show that it is generally possible to obtain a well-defined variational principle by adding a simple boundary term (which only depends on the value of the bulk...

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Bibliographic Details
Main Authors: Carlo Maccaferri, Riccardo Poletti, Alberto Ruffino, Jakub Vošmera
Format: Article
Language:English
Published: SpringerOpen 2025-06-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP06(2025)108
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