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arXiv · 2602.17660

Benchmarking quantum phase-space methods for near-resonant light propagation

Mojdeh S. Najafabadi·Joel F. Corney·Luis Sanchez Soto·Gerd Leuchs
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Abstract

We study the dynamics of light interacting with a near-resonant atomic medium using the truncated Wigner and positive P phase-space representations. The atomic degrees of freedom are described using the Jordan-Schwinger mapping. The dynamics is first analyzed under unitary evolution and subsequently in the presence of an optical reservoir. While both approaches capture the main features of the light-matter dynamics, we find that the truncated Wigner approximation exhibits noticeable deviations for stronger interaction strengths and when reservoir-induced noise becomes significant.

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Mojdeh S. Najafabadi, Joel F. Corney, Luis Sanchez Soto, Gerd Leuchs. 2026-02-19. Benchmarking quantum phase-space methods for near-resonant light propagation. https://doi.org/10.1103/xc3m-hsyx

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