Onset of vortex clustering and inverse energy cascade in dissipative quantum fluids
arXiv:2205.02925 · doi:10.1038/s41566-023-01174-4
Abstract
Turbulent phenomena are among the most striking effects that both classical and quantum fluids can exhibit. While classical turbulence is ubiquitous in nature, the observation of quantum turbulence requires the precise manipulation of quantum fluids such as superfluid helium or atomic Bose-Einstein condensates. In this work we demonstrate the turbulent dynamics of a 2D quantum fluid of exciton-polaritons, hybrid light-matter quasiparticles, both by measuring the kinetic energy spectrum and showing the onset of vortex clustering. We demonstrate that the formation of clusters of quantum vortices is triggered by the increase of the incompressible kinetic energy per vortex, showing the tendency of the vortex-gas towards highly excited configurations despite the dissipative nature of our system. These results lay the basis for the investigations of quantum turbulence in two-dimensional fluids of light.
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Cited by in corpus (18)
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- Observation of an Inverse Turbulent-Wave Cascade in a Driven Quantum Gas
- Vortex clusters in a stirred polariton condensate
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- Observation of Nonlinear Response and Onsager Regression in a Photon Bose-Einstein Condensate
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