Physics Letters B (Mar 2023)

Constrained instantons and kink-antikink collisions

  • C. Adam,
  • A. García Martín-Caro,
  • M. Huidobro,
  • K. Oles,
  • T. Romanczukiewicz,
  • A. Wereszczynski

Journal volume & issue
Vol. 838
p. 137728

Abstract

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We show that constrained CP1 instantons, combined with the Relativistic Moduli Space approach, can accurately describe kink-antikink collisions in the ϕ4 model.