Classical and single photon memory devices based on polariton lasers

D. Novokreschenov; A. Kudlis; A. V. Kavokin

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arXiv · 2509.20569

Classical and single photon memory devices based on polariton lasers

D. Novokreschenov·A. Kudlis·A. V. Kavokin

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Abstract

Stimulated scattering of incoherent excitons into an exciton-polariton mode leads to the build-up of a polariton condensate whose polarization is sensitive to a small seeded population that triggers the stimulated process. We show, within a semiclassical stochastic Gross-Pitaevskii model, that this mechanism enables a robust polarization memory operation: the condensate tends to align its Stokes vector with that of the seed and to maintain it for times far exceeding an individual polariton lifetime. Importantly, this single-photon-seeded regime is modeled as an initial weak excitation of the condensate mode. We quantify the memory performance by a classical polarization-alignment metric and find that the seed polarization can remain well preserved on a nanosecond timescale under realistic parameters.

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D. Novokreschenov, A. Kudlis, A. V. Kavokin. 2025-09-24. Classical and single photon memory devices based on polariton lasers. https://arxiv.org/abs/2509.20569

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