Translating oscillatory nonlinear structure in a plasma boundary

Details Translating oscillatory nonlinear structure in a plasma boundary Translating oscillatory nonlinear structure in a plasma boundary

2009-12-18

arxiv.org/abs/0912.3827v1

Phys. of Plasmas 16, 092107 (2009)

Physics

Plasma Physics

8 figures

Scientific paper

By means of a Madelung decomposition, exact periodic traveling solutions are constructed for a modified nonlinear Schrodinger equation derived by Stenflo and Gradov, describing electrostatic surface waves in semi-infinite plasma. The condition for the existence of bi-stable equilibria is discussed. A conservation law as well as the modulational instability admitted by the model are analyzed.

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