A B C
Z. Naturforsch. 66a, 769 – 773 (2011)
doi:10.5560/ZNA.2011-0050
Dynamics of Paired-Solitons in Quantum Electron Plasmas
Woo-Pyo Hong1 and Young-Dae Jung2
1 Department of Electronics Engineering, Catholic University of Daegu, Hayang, 712-702, South Korea
2 Department of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 426-791, South Korea
Received April 31, 2011 / revised August 7, 2011
Reprint requests to: W.-P. H.; E-mail: wphong@cu.ac.kr
We show the existence of new localized nonlinear structures for the electrostatic potential and the electron density in the form of bright and W-shaped solitons in quantum electron plasmas, respectively, which is modelled by the coupled nonlinear Schrödinger–Poisson equations. The robustness and the conservation of the energy of the solitons are demonstrated by numerical simulations. The sensitivity of the coupling constant on the stability of the paired solitons in the quantum electron plasmas are investigated.
Key words: Quantum Plasmas; Schrödinger–Poisson System; Numerical Solutions; Paired Solitons; Dynamical Stability.
PACS numbers: 05.45.Yv; 42.65.Tg; 42.81.Dp
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