Spinor stochastic resonance

We report on noise-induced spin ordering in a collective quasiparticle system: spinor stochastic resonance. Synergetic interplay of a polarization-modulated signal and a polarization noise allows us to switch coherently between the two metastable states of a microcavity-polariton spin bistable system. Spinor stochastic resonance is demonstrated in a zero-dimensional GaAs based microcavity. The resonance behaviors of both the spin amplification and the signal-to-noise ratio are experimentally evidenced as a function of the noise strength for different amplitude modulations. They are theoretically reproduced using a spinor Gross-Pitaevskii equation driven by a randomly polarized laser field.


Published in:
Physical Review B, 91, 15, 155307
Year:
2015
Publisher:
College Pk, American Physical Society
ISSN:
1098-0121
Laboratories:




 Record created 2015-05-29, last modified 2018-01-28

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