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arXiv · 2405.03062

Cavity QED systems for steady-state sources of Wigner-negative light

Alex Elliott·Scott Parkins
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Abstract

We present a theoretical investigation of optical cavity QED systems, as described by the driven, open Jaynes-Cummings model and some of its variants, as potential sources of steady-state Wigner-negative light. We consider temporal modes in the continuous output field from the cavity and demonstrate pronounced negativity in their Wigner distributions for experimentally-relevant parameter regimes. We consider models of both single and collective atomic spin systems, and find a rich structure of Wigner-distribution negativity as the spin size is varied. We also demonstrate an effective realization of all of the models considered using just a single 87Rb atom and based upon combinations of laser- and laser-plus-cavity-driven Raman transitions between magnetic sublevels in a single ground hyperfine state.

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Alex Elliott, Scott Parkins. 2024-05-05. Cavity QED systems for steady-state sources of Wigner-negative light. https://arxiv.org/abs/2405.03062

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