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arXiv · 1805.00991

False vacuum decay in kink scattering

Adalto R. Gomes·F. C. Simas·K. Z. Nobrega·P. P. Avelino
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Abstract

In this work we consider kink-antikink and antikink-kink collisions in a modified $ϕ^4$ model with a false vacuum characterized by a dimensionless parameter $ε$. The usual $ϕ^4$ model is recovered for $ε=0$. We investigate the $ε<<1$ regime where the kink in the presence of false vacuum can be understood as a small deformation of the standard kink for the $ϕ^4$ model. We show that the attractive interaction between the kink-antikink pair leads to a rich scattering pattern, in some cases delaying considerably the false vacuum decay.

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Adalto R. Gomes, F. C. Simas, K. Z. Nobrega, P. P. Avelino. 2018-05-02. False vacuum decay in kink scattering. https://doi.org/10.1007/jhep10(2018)192

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