Drag force in bimodal cubic-quintic nonlinear Schrödinger equation.

Phys Rev E Stat Nonlin Soft Matter Phys

Área de Óptica, Departamento de Física Aplicada, Universidade de Vigo, As Lagoas s/n, Ourense ES-32004, Spain.

Published: September 2014

We consider a system of two cubic-quintic nonlinear Schrödinger equations in two dimensions, coupled by repulsive cubic terms. We analyze situations in which a probe lump of one of the modes is surrounded by a fluid of the other one and analyze their interaction. We find a realization of D'Alembert's paradox for small velocities and nontrivial drag forces for larger ones. We present numerical analysis including the search of static and traveling form-preserving solutions along with simulations of the dynamical evolution in some representative examples.

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http://dx.doi.org/10.1103/PhysRevE.90.033204DOI Listing

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