Spinor stochastic resonance - Archive ouverte HAL
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2015

Spinor stochastic resonance

Résumé

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.
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Dates et versions

hal-01145056 , version 1 (23-04-2015)

Identifiants

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H Abbaspour, Stephane Trebaol, F Morier-Genoud, Marcia Portella-Oberli, B Deveaud. Spinor stochastic resonance. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2015, 91 (15), pp.155307. ⟨10.1103/PhysRevB.91.155307⟩. ⟨hal-01145056⟩
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