Bose Polaron in a quantum fluid of light
| Autor: | Vashisht, Amit, Richard, Maxime, Minguzzi, Anna |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | SciPost Phys. 12, 008 (2022) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.21468/SciPostPhys.12.1.008 |
| Popis: | 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. Comment: Submitted to SciPost Physics; corrected typos, added references, results are unchanged |
| Databáze: | arXiv |
| Externí odkaz: |
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