Dynamics of Alfven solitons in inhomogeneous plasmas
- School of Science, P. O. Box 122, Beijing University of Posts and Telecommunications, Beijing 100876 (China)
To provide an analytical scheme for the dynamical behavior of nonlinear Alfven waves in inhomogeneous plasmas, this paper investigates a generalized variable-coefficient derivative nonlinear Schroedinger equation. In the sense of admitting the Lax pair and infinitely many conservation laws, the integrability of this equation is established under certain coefficient constraint which suggests which inhomogeneities support stable Alfven solitons. The Hirota method is adopted to construct the one- and multi-Alfven-soliton solutions. The inhomogeneous soliton features are also discussed through analyzing some important physical quantities. A sample model is treated with our results, and graphical illustration presents two energy-radiating Alfven soliton structures.
- OSTI ID:
- 21254532
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 10 Vol. 15; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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