2010/10/25 by Natalia G. Berloff, Berloff, Natalia G. · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Nonlinear Photonic Systems #Other Condensed Matter (cond-mat.other) #Quantum Gases (cond-mat.quant-gas) #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech) #Strong Light-Matter Interactions #cond-mat.mes-hall #cond-mat.other #cond-mat.quant-gas #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.1010.5225
4.3 pages, 4 figures
openalex publication_date 2010/10/25 · arxiv created 2010/11/05 · arxiv updated 2010/11/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Nonequilibrium condensate systems such as exciton-polariton condensates are capable of supporting a spontaneous vortex nucleation. The spatial inhomogeneity of pumping field or/and disordered potential creates velocity flow fields that may become unstable to vortex formation. This letter considers ways in which turbulent states of interacting vortices can be created. It is shown that by combining just two pumping intensities it is possible to create a superfluid turbulence state of well-separated vortices, a strong turbulence state of de-structured vortices, or a weak turbulence state in which all coherence of the field is lost and motion is driven by weakly interacting dispersive waves. The decay of turbulence can be obtained by replacing an inhomogeneous pumping by a uniform one. We show that both in quasi-equilibrium and during the turbulence decay there exists an inertial range dominated by four-wave interactions of acoustic waves.