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.
Keywords : Quantum Plasmas; Schrödinger-Poisson System; Numerical Solutions; Paired Solitons; Dynamical Stability
Received: 2011-4-30
Revised: 2011-8-7
Published Online: 2014-6-2
Published in Print: 2011-12-1
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