Bubblelike structures generated by activation of internal shape modes in two-dimensional sine-Gordon line solitons
| Autor: | Juan F. Marín, Mónica A. García-Ñustes, J. A. González |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Josephson effect Phase transition Work (thermodynamics) Annihilation FOS: Physical sciences Context (language use) Pattern Formation and Solitons (nlin.PS) Nonlinear Sciences - Pattern Formation and Solitons 01 natural sciences 010305 fluids & plasmas Nonlinear system Classical mechanics 0103 physical sciences Reflection (physics) 010306 general physics Line (formation) |
| Zdroj: | Physical Review E. 95 |
| ISSN: | 2470-0053 2470-0045 |
| DOI: | 10.1103/physreve.95.032222 |
| Popis: | 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 bubble-like and drop-like structures due to local internal shape modes instabilities. We describe the formation of such structures on the basis of a one-dimensional theory of activation of internal modes of sG solitons. An interpretation of the observed phenomena, in the context of phase transitions theory, is given. Implications in Josephson junctions with a current dipole device are discussed. 10 pages, 9 figures, accepted for publication in Phys. Rev. E |
| Databáze: | OpenAIRE |
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