期刊
PHYSICS OF PLASMAS
卷 21, 期 1, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.4856735
关键词
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资金
- National Natural Science Foundation of China [11272023]
- Open Fund of State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications) [IPOC2013B008]
- Fundamental Research Funds for the Central Universities of China [2011BUPTYB02]
Quantum Zakharov-Kuznetsov (qZK) equation is found in a dense quantum magnetoplasma. Via the spectral analysis, we investigate the Hamiltonian and periodicity of the qZK equation. Using the Hirota method, we obtain the bilinear forms and N-soliton solutions. Asymptotic analysis on the two-soliton solutions shows that the soliton interaction is elastic. Figures are plotted to reveal the propagation characteristics and interaction between the two solitons. We find that the one soliton has a single peak and its amplitude is positively related to H-e, while the two solitons are parallel when H-e < 2, otherwise, the one soliton has two peaks and the two solitons interact with each other. Hereby, H-e is proportional to the ratio of the strength of magnetic field to the electronic Fermi temperature. External periodic force on the qZK equation yields the chaotic motions. Through some phase projections, the process from a sequence of the quasi-period doubling to chaos can be observed. The chaotic behavior is observed since the power spectra are calculated, and the quasi-period doubling states of perturbed qZK equation are given. The final chaotic state of the perturbed qZK is obtained. (C) 2014 AIP Publishing LLC.
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