Radiation-like Shock Waves in Kink Scattering

Fuente: arXiv
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Main Authors: Li, Xiang, Long, Lingxiao
Format: Preprint
Published: 2024
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author Li, Xiang
Long, Lingxiao
author_facet Li, Xiang
Long, Lingxiao
contents We study the radiation in kink collision via a model that varies between $ϕ^6$ theory and $ϕ^2$ theory with some discontinuities. Both numerical and analytical methods were used to investigate The kink-antikink(KAK) and antikink-kink(AKK) collision. In the numerical analysis, we found the critical velocities in both collisions increased with $n$. We also found a finite lifetime oscillon window in KAK collision for $n=2$. In the analytical part, we found a family of shock wave solutions that describes radiation in the kink collision perfectly. Moreover, an analytical AKK solution at $n\rightarrow\infty$ and $v=1$ was found by considering a certain limit of these solutions.
format Preprint
id arxiv_https___arxiv_org_abs_2407_14479
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Radiation-like Shock Waves in Kink Scattering
Li, Xiang
Long, Lingxiao
High Energy Physics - Theory
Pattern Formation and Solitons
We study the radiation in kink collision via a model that varies between $ϕ^6$ theory and $ϕ^2$ theory with some discontinuities. Both numerical and analytical methods were used to investigate The kink-antikink(KAK) and antikink-kink(AKK) collision. In the numerical analysis, we found the critical velocities in both collisions increased with $n$. We also found a finite lifetime oscillon window in KAK collision for $n=2$. In the analytical part, we found a family of shock wave solutions that describes radiation in the kink collision perfectly. Moreover, an analytical AKK solution at $n\rightarrow\infty$ and $v=1$ was found by considering a certain limit of these solutions.
title Radiation-like Shock Waves in Kink Scattering
topic High Energy Physics - Theory
Pattern Formation and Solitons
url https://arxiv.org/abs/2407.14479