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arXiv · 1409.5112

Driven-dissipative confined polariton condensate under magnetic field

C. Sturm·D. Solnyshkov·O. Krebs·A. Lemaître·I. Sagnes·E. Galopin·A. Amo·G. Malpuech·J. Bloch
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Abstract

We investigate exciton-polariton condensation under magnetic field in a single high-quality semiconductor micropillar cavity. We observe successive polariton condensation of each spin component for two distinct threshold powers. Pronounced and non-monotonous variations of both the Zeeman splitting and the circular polarization of the emission are measured across these two condensation thresholds. This unexpected behavior deeply deviates from the so-called spin Meissner effect predicted for a fully thermalized system. Our measurements can be understood in a kinetic approach taking into account spin-anisotropic interactions within the entire system: the polariton condensate and the cloud of uncondensed excitons.

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C. Sturm, D. Solnyshkov, O. Krebs, A. Lemaître, I. Sagnes, E. Galopin, A. Amo, G. Malpuech, J. Bloch. 2014-09-17. Driven-dissipative confined polariton condensate under magnetic field. https://arxiv.org/abs/1409.5112

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