Bubblelike structures generated by activation of internal shape modes in two-dimensional sine-Gordon line solitons.
Bubblelike structures generated by activation of internal shape modes in two-dimensional sine-Gordon line solitons.
复制标题
通过激活二维正弦戈登线孤子中的内部形状模式而生成的气泡状结构。
DOI：
10.1103/physreve.95.032222
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Jorge A. Gonzalez
中科院分区：
文献类型：
--
作者：
M. García;Juan F. Marín;Jorge A. Gonzalez
与局部缺陷碰撞的非线性波表现出复杂的行为。除了入射波的反射、透射和湮灭外，局域非均匀性还可以激活孤子的内模，产生许多令人印象深刻的现象。在这项工作中，我们研究了一个二维sine-Gordon模型受一族局部化力的扰动。我们观察到的气泡状和水滴状结构的形成，由于局部内部形状模式的不稳定性。我们描述了形成这样的结构的基础上的一个一维的理论激活的内部模式的sine-Gordon孤子。所观察到的现象的解释，在相变理论的背景下，给出。讨论了电流偶极器件在约瑟夫森结中的应用。
Nonlinear waves that collide with localized defects exhibit complex behavior. Apart from reflection, transmission, and annihilation of an incident wave, a local inhomogeneity can activate internal modes of solitons, producing many impressive phenomena. In this work we investigate a two-dimensional sine-Gordon model perturbed by a family of localized forces. We observed the formation of bubblelike and droplike structures due to local internal shape mode instabilities. We describe the formation of such structures on the basis of a one-dimensional theory of activation of internal modes of sine-Gordon solitons. An interpretation of the observed phenomena, in the context of phase transition theory, is given. Implications in Josephson junctions with a current dipole device are discussed.