Effect of discreteness on a sine-Gordon three-soliton solution
The collision between a kink and high amplitude breather in the Frenkel-Kontorova chain with a small degree of discreteness was studied numerically and the results were compared with an exact three-soliton solution to the sine-Gordon (SG) equation. It was found that there exists a narrow range of pa...
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Published in | Physics letters. A Vol. 246; no. 1; pp. 129 - 134 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
07.09.1998
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Subjects | |
Online Access | Get full text |
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Summary: | The collision between a kink and high amplitude breather in the Frenkel-Kontorova chain with a small degree of discreteness was studied numerically and the results were compared with an exact three-soliton solution to the sine-Gordon (SG) equation. It was found that there exists a narrow range of parameters of quasiparticles where the collision in the discrete system is strongly inelastic and that the inelastic collision occurs in the vicinity of a separatrix of the SG three-soliton solution. |
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ISSN: | 0375-9601 1873-2429 |
DOI: | 10.1016/S0375-9601(98)00459-9 |