Convection-induced nonlinear-symmetry-breaking in wave mixing

Abstract

We show that the combined action of diffraction and convection (walk-off) in wave mixing processes leads to a nonlinear-symmetry-breaking in the generated traveling waves. The dynamics near to threshold is reduced to a Ginzburg-Landau model, showing an original dependence of the nonlinear self-coupling term on the convection. Analytical expressions of the intensity and the velocity of traveling waves emphasize the utmost importance of convection in this phenomenon. These predictions are in excellent agreement with the numerical solutions of the full dynamical model.

arXiv comment5 pages

References in corpus (3)

• Spatio-temporal structure of traffic flow in a system with an open boundary
• Non-classical behavior in multimode and disordered transverse structures in OPO. Use of the Q representation
• Macroscopic quantum fluctuations in noise-sustained optical patterns

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