Critical velocity in resonantly driven polariton superfluids
arXiv:2006.06363 · doi:10.1016/j.physd.2020.132747
Abstract
We study the necessary condition under which a resonantly driven exciton polariton superfluid flowing against an obstacle can generate turbulence. The value of the critical velocity is well estimated by the transition from elliptic to hyperbolic of an operator following ideas developed by Frisch, Pomeau, Rica for a superfluid flow around an obstacle, though the nature of equations governing the polariton superfluid is quite different. We find analytical estimates depending on the pump amplitude and on the pump energy detuning, quite consistent with our numerical computations.
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Cited by in corpus (5)
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- Critical velocity for superfluidity in the one-dimensional mean-field regime: From matter to light quantum fluids
- Landau Instability and soliton formation
- Metamorphoses of the flow past an obstacle of a resonantly-driven bistable polariton fluid
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