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arXiv 2201.03277nlin.PShep-th
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非对称$ϕ^6$扭结对$\mathcal{PT}$对称微扰的散射:声子产生多对扭结-反扭结

Scattering of the asymmetric $ϕ^6$ kinks from a $\mathcal{PT}$-symmetric perturbation: Creation of multiple pairs of kink-antikink from phonons

Danial Saadatmand, Aliakbar Moradi Marjaneh

摘要:

数值研究了非对称$ϕ^6$扭结与空间局域$\mathcal{PT}$对称微扰的相互作用。结果表明,当扭折(反扭折)从增益侧撞击缺陷时,扭折的最终速度减小(增加),而对于来自相反方向的扭折和反扭折,它们的最终速度保持不变。还发现,当扭结与缺陷从增益侧相互作用时,多对扭结-反扭结由最终状态中的小振幅波(声子)形成,这取决于初始扭结的初始速度和微扰参数。

英文摘要:

Interaction of asymmetric $ϕ^6$ kinks with a spatially localized $\mathcal{PT}$-symmetric perturbation is investigated numerically. It has been shown that when the kink (antikink) hits the defect from the gain side, a final velocity of the kink decreases (increases), while for the kink and antikink coming from the opposite direction their final velocities remain unchanged. It is also found that when the kink interacts with the defect from the gain side multiple pair of the kink-antikink are formed from small amplitude waves (phonons) in the final states depending on the initial velocity of the initial kink and parameter of the perturbation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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