Soliton Instabilities and Vortex Street Formation in a Polariton Quantum Fluid

Soliton instabilities and vortex street formation in a polariton quantum fluid.

Exciton polaritons have been shown to be an optimal system in order to investigate the properties of bosonic quantum fluids. We report here on the observation of dark solitons in the wake of engineered circular obstacles and their decay into streets of quantized vortices. Our experiments provide a time-resolved access to the polariton phase and density, which allows for a quantitative study of ...

Dynamics of dark-soliton formation in a polariton quantum fluid

Polariton fluids have revealed huge potentialities in order to investigate the properties of bosonic fluids at the quantum scale. Among those properties, the opportunity to create dark as well as bright solitons has been demonstrated recently. In the present experiments, we image the formation dynamics of oblique dark solitons. They nucleate in the wake of an engineered attractive potential tha...

Four-wave mixing excitations in a dissipative polariton quantum fluid

V. Kohnle,1 Y. Léger,1,2,* M. Wouters,3 M. Richard,4 M. T. Portella-Oberli,1 and B. Deveaud1 1Institute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland 2FOTON Laboratory, Université Européenne de Bretagne, CNRS-INSA-UR1, F-35708 Rennes, France 3TQC, University of Antwerp, Universiteislpein 1, 2610 Antwerpen, Belgium 4Nano-Physics and Semicond...

Hasimoto Transformation and Vortex Soliton Motion Driven by Fluid Helicity

Vorticity filament motions with respect to the Dirac bracket of Rasetti and Regge [1975] are known to be related to the nonlinear Schrödinger equation by the Hasimoto transformation (HT), when the Hamiltonian is the Local Induction Approximation (LIA) of the kinetic energy. We show that when the Hamiltonian is the LIA of Euler-fluid helicity ∫ u · curlu, the vorticity filament equation of motio...

Quantum fluid effects and parametric instabilities in microcavities