Comments on $\lambda$--deformed models from 4D Chern-Simons theory

Jia Tian

Comments on $\lambda$--deformed models from 4D Chern-Simons theory

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arxiv 2005.14554 v2 pith:K3BJLIF2 submitted 2020-05-29 hep-th

Jia Tian This is my paper · ORCID

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keywords lambdachern-simonscitedeformationdeformedmodelstheoryaddition

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abstract

We study the $\lambda$--deformation of symmetric coset models from the viewpoint of a four dimensional Chern-Simons theory \cite{CY3}. In addition, by applying the "dual" boundary conditions of the ones used in the construction $\eta$--deformed PCM in the trigonometric description \cite{TRIGYB} we construct a $\lambda$--deformation type model.

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Courant-Hilbert deformations of Yang-Baxter sigma models
hep-th 2026-02 conditional novelty 6.0 of 10

Yang-Baxter and Courant-Hilbert deformations combine inside 4D Chern-Simons theory: the corrected action equals the master Lagrangian plus half the trace of the energy-momentum tensor.

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