Journal
PHYSICS OF PLASMAS
Volume 20, Issue 8, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4818508
Keywords
-
Categories
Funding
- 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)
- Fundamental Research Funds for the Central Universities of China [2011BUPTYB02]
Ask authors/readers for more resources
In this paper, we investigate the Zakharov-Kuznetsov-Burgers (ZKB) equations for the dust-ion-acoustic waves in dusty plasmas. Shock-like and soliton solutions are both constructed through the introduction of an auxiliary function and variable. ZKB-soliton propagation is plotted, and from those figures, we find that energy of the solitons increases when the number of electrons in a dust particle decreases or the mass of such dust particle becomes larger. Considering the external perturbations in the dusty plasmas, we study the perturbed ZKB equation via some qualitative and quantitative methods. To corroborate that the perturbed ZKB equation can indeed give rise to the chaos, we make use of the power spectrum and Lyapunov exponents. Then, we investigate the phase projections, and find that both the weak and developed chaos can be observed. Weak chaos occur when the absolute value of damped coefficient (l(1)) is stronger than the strength of perturbed term (g(1)), or else, the developed one occurs. Ranges of l(1) and g(1) are given via the largest Lyapunov exponents when the perturbed ZKB equation is in different chaotic states. Therefore, we can find that the chaotic motion of the perturbed ZKB equation will be enhanced with the number of electrons in a dust particle or the mass of such a dust particle decreasing. (C) 2013 AIP Publishing LLC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available