Kink-antikink scattering in a quantum vacuum

Abstract

We study kink-antikink scattering in the sine-Gordon model in the presence of interactions with an additional scalar field, $\psi$, that is in its quantum vacuum. In contrast to the classical scattering, now there is quantum radiation of $\psi$ quanta and the kink-antikink may form bound states that resemble breathers of the sine-Gordon model. We quantify the rate of radiation and map the parameters for which bound states are formed. Even these bound states radiate and decay, and eventually there is a transition into long-lived oscillons.

29 pages, 16 figures, published version

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Cited by in corpus (9)

• Resonance structures in kink-antikink scattering in a quantum vacuum
• Kink scattering in the presence of geometric constrictions
• The semiclassical energy density of kinks and solitons
• Geometrically constrained sine-Gordon field: BPS solitons and their collisions
• Creating kinks with quantum mediation
• String amplitudes and mutual information in confining backgrounds: the partonic behavior
• Scattering of kinks in scalar-field models with higher-order self-interactions
• Semiclassical Backreaction: A Qualitative Assessment
• Evolution of a kink-antikink ensemble in a quantum vacuum