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arXiv · 2209.04760

Ballistic transport of a polariton ring condensate with spin precession

Qi Yao·Evgeny Sedov·Shouvik Mukherjee·Jonathan Beaumariage·Burcu Ozden·Ken West·Loren Pfeiffer·Alexey Kavokin·David Snoke
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Abstract

It is now routine to make Bose-Einstein condensates of polaritons with long enough lifetime and low enough disorder to travel ballistically for hundreds of microns in quasi-one-dimensional (1D) wires. We present observations of a polariton condensate injected at one point in a quasi-1D ring, with a well-defined initial velocity and direction. A clear precession of the circular polarization is seen, which arises from an effective spin-orbit coupling term in the Hamiltonian. Our theoretical model accurately predicts the experimentally observed behavior, and shows that "zitterbewegung" behavior plays a role in the motion of the polaritons.

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Qi Yao, Evgeny Sedov, Shouvik Mukherjee, Jonathan Beaumariage, Burcu Ozden, Ken West, Loren Pfeiffer, Alexey Kavokin, David Snoke. 2022-09-11. Ballistic transport of a polariton ring condensate with spin precession. https://doi.org/10.1103/physrevb.106.245309

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