Structuring coflowing and counterflowing currents of polariton condensates in concentric ring-shaped and elliptical potentials

Barkhausen, Franziska; Pukrop, Matthias; Schumacher, Stefan; Ma, Xuekai

doi:10.1103/physrevb.103.075305

Cited by 6 publications

(4 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The stability of the uniform solutions with no circular currents in both rings was described, while the nucleation of JVs remained out of consideration. The excitation of identical circular currents in both inner and outer polariton rings was predicted in [34].…”

Section: Introductionmentioning

confidence: 99%

Dissipative Josephson vortices in annular polariton fluids

Chestnov,

Yulin,

Shelykh

et al. 2021

Preprint

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Dissipative Josephson vortices in annular polariton fluids

Chestnov,

Yulin,

Shelykh

et al. 2021

Preprint

View full text Add to dashboard Cite

“…Characterizing the dynamic process of exciton-polariton condensates in specific potential wells helps to understand physical phenomena such as the superconductivity, superfluidity, quantized vortices, and spontaneous coherent orbital coupling of exciton-polariton condensates [6,7]. Prior research has manipulated the evolution process of exciton-polariton BEC by adjusting the potential well structures, such as circular, annular, elliptical, and billiard table-shaped wells [8][9][10][11]. One of the important factors affecting the evolution process of exciton-polariton BEC is the chemical potential it senses, which is determined by different potential well structures.…”

Section: Introductionmentioning

confidence: 99%

“…One of the important factors affecting the evolution process of exciton-polariton BEC is the chemical potential it senses, which is determined by different potential well structures. Under the confinement of potential wells with different shapes and sizes, and the influence of quantum effects, the spatial distribution, dispersion relation, localization degree, and coupling strength of exciton-polariton BEC in the microcavity vary greatly [8,12,13]. In this paper, we study the influence of a series of asymmetric annular potential wells with unique geometric shapes and periodic boundary conditions on the dynamic evolution process of exciton-polariton BEC.…”

Section: Introductionmentioning

confidence: 99%

The dynamical evolution of exciton-polaritons in asymmetric ring-step potential well

Dong,

Ren,

et al. 2024

New J. Phys.

View full text Add to dashboard Cite

The exciton-polariton, a quasi-particle formed by the coupling of excitons and photons, exhibits a semi-light-semi-matter nature, inheriting the advantages of both constituents and capable of achieving Bose-Einstein condensation at room temperature. This paper investigates the evolution of superposition states of semiconductor microcavity exciton-polariton Bose-Einstein condensate (BEC) within a ring-shaped structure. By employing theoretical modeling, the time-dependent dynamics of the superposition states of exciton-polaritons bound within a unique ring-step asymmetric potential well structure are analyzed. The study reveals correlations between the potential well structure of this step-like configuration and the transitions of exciton-polariton BEC superposition states, shedding light on the evolution paths of BEC systems under specific structural influences and the fluctuation patterns of excitonic fields. These findings hold relevance for experimental manipulations of exciton-polariton superposition states within microcavities. The research demonstrates that ring-step potential well structures influence the excitation and evolution of exciton-polariton BEC superposition states, leading to transitions towards higher or lower order states. This transition is reflected macroscopically in alterations in the number and spatial distribution of interference petals in the superposition states. We consider initial states with orbital angular momentum quantum number l = 2, 3, 4, respectively. By exploiting the different structural relationships of ring-step potential wells, we achieve controlled evolutions of macroscopic occupation states, with interference petal numbers ranging from 4 to 6, 4 to 8, 6 to 8, 6 to 10, 8 to 10, 8 to 12, and 6 to 4.

show abstract

“…In Ref. 17 the polariton condensates in concentric ring trapping potentials have been studied theoretically. The coflowing currents of polaritons (cowinding vortices) in the condensates linked with each other by a Josephson junction have been predicted.…”

Section: Introductionmentioning

confidence: 99%

Steady state oscillations of circular currents in concentric polariton condensates

Lukoshkin

Sedov

Kalevich

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Concentric ring exciton polariton condensates emerging under non-resonant laser pump in an annular trapping potential support persistent circular currents of polaritons. The trapping potential is formed by a cylindrical micropillar etched in a semiconductor microcavity with embedded quantum wells and a repulsive cloud of optically excited excitons under the pump spot. The symmetry of the potential is subject to external control via manipulation by its pump-induced component. In the manuscript, we demonstrate excitation of concentric ring polariton current states with predetermined vorticity which we trace using interferometry measurements with a spherical reference wave. We also observe the polariton condensate dynamically changing its vorticity during observation, which results in pairs of fork-like dislocations on the time-averaged interferogram coexisting with azimuthally homogeneous photoluminescence distribution in the micropillar.

show abstract

Structuring coflowing and counterflowing currents of polariton condensates in concentric ring-shaped and elliptical potentials

Cited by 6 publications

References 40 publications

Dissipative Josephson vortices in annular polariton fluids

Dissipative Josephson vortices in annular polariton fluids

The dynamical evolution of exciton-polaritons in asymmetric ring-step potential well

Steady state oscillations of circular currents in concentric polariton condensates

Contact Info

Product

Resources

About