Full S-matrices and witten diagrams with relative L ∞ -algebras

Abstract The L ∞ -algebra approach to scattering amplitudes elegantly describes the non-trivial part of the S-matrix but fails to take into account the trivial part. We argue that the trivial contribution to the S-matrix should be accounted for by another, complementary L ∞ -algebra, such that a per...

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Bibliographic Details
Main Authors: Luigi Alfonsi, Leron Borsten, Hyungrok Kim, Martin Wolf, Charles A. S. Young
Format: Article
Language:English
Published: SpringerOpen 2025-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP07(2025)267
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Summary:Abstract The L ∞ -algebra approach to scattering amplitudes elegantly describes the non-trivial part of the S-matrix but fails to take into account the trivial part. We argue that the trivial contribution to the S-matrix should be accounted for by another, complementary L ∞ -algebra, such that a perturbative field theory is described by a cyclic relative L ∞ -algebra. We further demonstrate that this construction reproduces Witten diagrams that arise in AdS/CFT including, in particular, the trivial Witten diagrams corresponding to CFT two-point functions. We also discuss Chern-Simons theory and Yang-Mills theory on manifolds with boundaries using this approach.
ISSN:1029-8479