Vibrations of thick domain walls: How to avoid no-go theorem

Abstract

The asymptotic properties of the stability potentials of kinks with power-law tails are discussed. In particular, in cosmology such kinks can describe "thick" domain walls. The discrete part of the domain wall excitation spectrum, the profile of which is described by a kink solution with one or both power-law asymptotics, cannot contain levels other than zero (translational) mode. Nevertheless, it can be shown that scenarios are quite possible when long-lived localized vibrations will be excited on the domain wall. This, in turn, can affect the processes of interaction of two or more domain walls.

arXiv comment4 pages; Proceedings of the 5th International Conference on Particle Physics and Astrophysics (ICPPA-2020), Moscow, 5-9 October 2020

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Cited by in corpus (1)

• Semi-compactness and multiple oscillating pulses in kink scattering