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arXiv · 1910.00344

Superfluid currents in half-moon polariton condensates

E. S. Sedov·V. A. Lukoshkin·V. K. Kalevich·Z. Hatzopoulos·P. G. Savvidis·A. V. Kavokin
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Abstract

We excite exciton-polariton condensates in half-moon shapes by the non-resonant optical excitation of GaAs-based cylindrical pillar microcavities. In this geometry, the π-jump of the phase of the condensate wave function coexists with a gradual {\pm π} phase variation between two horns of the half-moon. We switch between clockwise and counter-clockwise phase currents by slightly shifting the excitation spot on the surface of the pillar. Half-moon condensates are expected to reveal features of two-level quantum systems similar to superconducting flux qubits

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E. S. Sedov, V. A. Lukoshkin, V. K. Kalevich, Z. Hatzopoulos, P. G. Savvidis, A. V. Kavokin. 2020-03-18. Superfluid currents in half-moon polariton condensates. https://doi.org/10.1021/acsphotonics.9b01779

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