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Article Dans Une Revue SciPost Physics Année : 2022

Bose Polaron in a quantum fluid of light

Résumé

We study the Bose polaron problem in a nonequilibrium setting, by considering an impurity embedded in a quantum fluid of light realized by exciton-polaritons in a microcavity, subject to a coherent drive and dissipation on account of pump and cavity losses. We obtain the polaron effective mass, the drag force acting on the impurity, and determine polaron trajectories at a semiclassical level. We find different dynamical regimes, originating from the unique features of the excitation spectrum of driven-dissipative polariton fluids, in particular a non-trivial regime of acceleration against the flow. Our work promotes the study of impurity dynamics as an alternative testbed for probing superfluidity in quantum fluids of light.

Dates et versions

hal-03384399 , version 1 (18-10-2021)

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Citer

Amit Vashisht, Maxime Richard, Anna Minguzzi. Bose Polaron in a quantum fluid of light. SciPost Physics, 2022, 12 (1), pp.008. ⟨10.21468/SciPostPhys.12.1.008⟩. ⟨hal-03384399⟩
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