Soliton confinement in the double sine-Gordon model

The double sine-Gordon field theory in the weak confinement regime is studied. It represents the small non-integrable deformation of the standard sine-Gordon model caused by the cosine perturbation with the frequency reduced by the factor of 2. This perturbation leads to the confinement of the sine-...

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Bibliographic Details
Main Author: Sergei Rutkevich
Format: Article
Language:English
Published: SciPost 2024-02-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.16.2.042