TY - JOUR

T1 - Opposite current states in concentric ring exciton-polariton condensates

AU - Лукошкин, Владимир Алексеевич

AU - Калевич, Владимир Константинович

AU - Седов, Евгений Сергеевич

AU - Кавокин, Алексей Витальевич

PY - 2024/11/12

Y1 - 2024/11/12

N2 - This work explores the excitation of a two-mode exciton-polariton condensate within a ring-shapedtrap, with each mode manifesting as a distinct eigenstate characterized by oppositely directed azimuthalpolariton currents. The coexistence of these condensate states is facilitated by a positive gain-loss bal-ance for both states, sustained by external noncoherent laser pumping. We utilize interferometric methodsto investigate these states. Spherical wave interferometry visualizes the azimuthal polariton currents andelucidates the spatial phase properties of the condensates. Plane-wave interferometry with a self-delayedreplica of the condensate’s photoluminescence provides a highly sensitive approach for estimating theenergy splitting between the states. The experimental observations are validated by numerical simula-tions. The study emphasizes the potential of these condensates to form the basis for flux polariton qubits,leveraging the superposition of current states within an annular optical trap.

AB - This work explores the excitation of a two-mode exciton-polariton condensate within a ring-shapedtrap, with each mode manifesting as a distinct eigenstate characterized by oppositely directed azimuthalpolariton currents. The coexistence of these condensate states is facilitated by a positive gain-loss bal-ance for both states, sustained by external noncoherent laser pumping. We utilize interferometric methodsto investigate these states. Spherical wave interferometry visualizes the azimuthal polariton currents andelucidates the spatial phase properties of the condensates. Plane-wave interferometry with a self-delayedreplica of the condensate’s photoluminescence provides a highly sensitive approach for estimating theenergy splitting between the states. The experimental observations are validated by numerical simula-tions. The study emphasizes the potential of these condensates to form the basis for flux polariton qubits,leveraging the superposition of current states within an annular optical trap.

UR - https://www.mendeley.com/catalogue/6450d88b-2caa-36bc-b6b4-918e3086b327/

U2 - 10.1103/physrevapplied.22.054031

DO - 10.1103/physrevapplied.22.054031

M3 - Article

VL - 22

JO - Physical Review Applied

JF - Physical Review Applied

SN - 2331-7019

IS - 5

M1 - 054031

ER -