PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Investigation on the resonance phenomena of multi-solitons for the (3+1)-dimensional Kadomtsev–Petviashvili equation |
Shi Yu-Ren(石玉仁)a)†, Zhang Juan(张娟)a), Yang Hong-Juan(杨红娟)a), Duan Wen-Shan(段文山)a), and Karl E. Lonngrenb) |
a College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; b Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, IA 52242, USA |
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Abstract In this paper, we theoretically investigate the four-soliton interaction and their resonance phenomena of the (3+1)-dimensional Kadomtsev–Petviashvili (KP) equation. We find that the maximum amplitude of the resonantly created soliton can be 16 times that of one of the four equi-amplitude initial interacting solitons. We also find that the maximum amplitude can only be 4 times the initial soliton amplitude when the resonance phenomena does not take place. The case of four solitons with different amplitudes also has been studied analytically. The results indicate that the resonance phenomena still exists in this case. Numerical results confirm the theoretical predictions.
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Received: 04 June 2010
Revised: 22 July 2010
Accepted manuscript online:
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PACS:
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52.35.Sb
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(Solitons; BGK modes)
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05.45.Yv
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(Solitons)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10575082); the Key Project Foundation of the Education Ministry of China (Grant No. 209128), the Natural Science Foundation of Northwest Normal University (Grant No. NWNU-KJCXGC-03-53). |
Cite this article:
Shi Yu-Ren(石玉仁), Zhang Juan(张娟), Yang Hong-Juan(杨红娟), Duan Wen-Shan(段文山), and Karl E. Lonngren Investigation on the resonance phenomena of multi-solitons for the (3+1)-dimensional Kadomtsev–Petviashvili equation 2011 Chin. Phys. B 20 015205
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