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arXiv · 2505.04044

Mean-field Mixed Quantum-Classical Approach for Many-Body Quantum Dynamics of Exciton-Polaritons

Pritha Ghosh·Arshath Manjalingal·Sachith Wickramasinghe·Saeed Rahmanian Koshkaki·Arkajit Mandal
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Abstract

In this work, we use a mixed quantum-classical (mean-field) many-body approach for simulating the quantum dynamics of excitons and exciton-polaritons beyond the single-excitation subspace. We combine the multitrajectory Ehrenfest approach, which propagates slow degrees of freedom classically, with the Gross-Pitaevskii method, which propagates fast degrees of freedom in a mean-field fashion. We use this mean-field many-body Ehrenfest approach to analyze how the phonon-induced dynamic disorder and the many-body interaction affect the incoherent and coherent dynamics of excitons and exciton-polaritons. We examine how the number of excitations and the strength of repulsive exciton-exciton interaction nonlinearly influence the transport, Fr\"ohlich scattering and decoherence.

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BibTeXRIS

Pritha Ghosh, Arshath Manjalingal, Sachith Wickramasinghe, Saeed Rahmanian Koshkaki, Arkajit Mandal. 2025-05-07. Mean-field Mixed Quantum-Classical Approach for Many-Body Quantum Dynamics of Exciton-Polaritons. https://doi.org/10.1103/m53p-sfc5

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