Journal
PHYSICS LETTERS B
Volume 773, Issue -, Pages 295-299Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2017.08.045
Keywords
Domain walls; Negative radiation pressure; Solitons
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We study the motion of domain walls in 1+1, 2+1 and briefly 3+1 d relativistic phi(6) model with three equal vacua in the presence of radiation. We show that even small fluctuations can trigger a chain reaction leading to vanishing of the domain walls. Only one vacuum remains stable and domains containing other vacua vanish. We explain this phenomenon in terms of radiation pressure (both positive and negative). We construct an effective model which translates the fluctuations into additional term in the field theory potential. In case of two dimensional model we find a relation between the critical size of the bulk and amplitude of the perturbation. (C) 2017 The Author. Published by Elsevier B.V.
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