Bose polaron in a quantum fluid of light

Vashisht, Amit; Richard, Maxime; Minguzzi, Anna

doi:10.21468/SciPostPhys.12.1.008

SciPost Physics

Bose polaron in a quantum fluid of light

Amit Vashisht, Maxime Richard, Anna Minguzzi

SciPost Phys. 12, 008 (2022) · published 6 January 2022

doi: 10.21468/SciPostPhys.12.1.008
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Abstract

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.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.12.1.008
TI  - Bose polaron in a quantum fluid of light
PY  - 2022/01/06
UR  - https://scipost.org/SciPostPhys.12.1.008
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 12
IS  - 1
SP  - 008
A1  - Vashisht, Amit
AU  - Richard, Maxime
AU  - Minguzzi, Anna
AB  - 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.
ER  -

@Article{10.21468/SciPostPhys.12.1.008,
	title={{Bose polaron in a quantum fluid of light}},
	author={Amit Vashisht and  Maxime Richard and Anna Minguzzi},
	journal={SciPost Phys.},
	volume={12},
	pages={008},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.12.1.008},
	url={https://scipost.org/10.21468/SciPostPhys.12.1.008},
}

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Funder for the research work leading to this publication

Horizon 2020 (through Organization: European Commission [EC])