4.2 Article

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

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Summary: In this study, we investigate the internal dynamics of exciton-polariton condensates in a cylindrical pillar microcavity with embedded quantum wells created by nonresonant optical pumping. The controllable polariton flows are demonstrated by breaking the rotational symmetry of the system and switching between integer and fractional orbital angular momenta (OAM) states. By adjusting the position and ellipticity of the pump spot, the phase of the condensate is significantly affected, leading to the observation of polariton current states with various topological charges.

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