Two-dimensional ring-like vortex and multisoliton nonlinear structures at the upper-hybrid resonance

Details Two-dimensional ring-like vortex and multisoliton nonlinear structures at the upper-hybrid resonance Two-dimensional ring-like vortex and multisoliton nonlinear structures at the upper-hybrid resonance

2007-06-05

arxiv.org/abs/0706.0617v1

Physics

Plasma Physics

8 pages, 6 figures, submitted to Phys. Plasmas

Scientific paper

10.1063/1.2789563

Two-dimensional (2D) equations describing the nonlinear interaction between upper-hybrid and dispersive magnetosonic waves are presented. Nonlocal nonlinearity in the equations results in the possibility of existence of stable 2D nonlinear structures. A rigorous proof of the absence of collapse in the model is given. We have found numerically different types of nonlinear localized structures such as fundamental solitons, radially symmetric vortices, nonrotating multisolitons (two-hump solitons, dipoles and quadrupoles), and rotating multisolitons (azimuthons). By direct numerical simulations we show that 2D fundamental solitons with negative hamiltonian are stable.

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