# Observation of nonequilibrium motion and equilibration in polariton rings

@article{Mukherjee2019ObservationON, title={Observation of nonequilibrium motion and equilibration in polariton rings}, author={Shouvik Mukherjee and David M. Myers and Rosaria G. Lena and Burcu Ozden and Jonathan Beaumariage and Z. Sun and Mark Steger and Loren N. Pfeiffer and Ken W. West and Andrew J. Daley and David W. Snoke}, journal={Physical Review B}, year={2019} }

We present a study of the macroscopic dynamics of a polariton condensate formed by non-resonant optical excitation in a quasi-one-dimensional ring-shaped microcavity. The presence of a gradient in the cavity photon energy creates a macroscopic trap for the polaritons in which a single mode condensate is formed. With time- and energy-resolved imaging we show the role of interactions in the motion of the condensate as it undergoes equilibration in the ring. These experiments also give a direct…

## 10 Citations

### Spontaneous Formations of Dynamical Steady States in Polariton Condensates

- PhysicsFrontiers in Physics
- 2021

We present a numerical analysis on dynamical steady states of polariton Bose–Einstein condensates (BECs) in an incoherent exciton reservoir driven by a ring-shaped optical pump. The balance between…

### Direct measurement of polariton-polariton interaction strength in the Thomas-Fermi regime of exciton-polariton condensation

- PhysicsPhysical Review B
- 2019

Bosonic condensates of exciton polaritons (light-matter quasiparticles in a semiconductor) provide a solid-state platform for studies of non-equilibrium quantum systems with a spontaneous macroscopic…

### Steady-state theory of electron drag on polariton condensates

- Physics
- 2022

We present a general theory of drag on a condensate due to interactions with a moving thermal bath of non-condensate particles, adapted from previous theory of equilibration of a condensate in a…

### Spontaneously coherent orbital coupling of counterrotating exciton polaritons in annular perovskite microcavities

- PhysicsLight, science & applications
- 2021

This work experimentally and theoretically demonstrates the room-temperature spontaneous formation of a coherent superposition of exciton-polariton orbital states with symmetric petal-shaped patterns in real space, resulting from symmetry breaking due to the anisotropic effective potential of the birefringent perovskite crystals.

### Giant synthetic gauge field for spinless microcavity polaritons in crossed electric and magnetic fields

- Physics
- 2021

The artificial gauge field for electrically neutral exciton polaritons devoid from the polarization degree of freedom can be synthesized by means of applying crossed electric and magnetic fields. The…

### Exciton energy oscillations induced by quantum beats

- Physics
- 2020

In this paper, we experimentally demonstrate an oscillating energy shift of center-of-mass quantum-confined exciton levels in a semiconductor quantum well after excitation into a superposition of two…

### Split-ring polariton condensates as macroscopic two-level quantum systems

- Physics
- 2019

Superposition states of circular currents of exciton-polaritons mimic the superconducting flux qubits. The current states are formed by a macroscopic number of bosonic quasiparticles that compose a…

### Polaron-enhanced polariton nonlinearity in lead halide perovskites

- Physics
- 2022

Exciton-polaritons offer a versatile platform for realization of all-optical integrated logic gates due to the strong effective optical nonlinearity resulting from the exciton-exciton interactions.…

### Dissipative Josephson vortices in annular polariton fluids

- EducationPhysical Review B
- 2021

I. Chestnov, 2, 3 A. Yulin, I. A. Shelykh, 4 and A. Kavokin 2, 6 Westlake University, School of Science, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China Westlake Institute for Advanced…

### Spinor superfluid currents of exciton-polaritons on a split-ring

- Physics
- 2022

Recently, split-ring bosonic condensates of exciton polaritons have been proposed for realisation of qubits. We formulate an analytical model of a polariton condensate in a one-dimensional ring split…

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