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arXiv · 2511.10061

Enantiodetection in a cavity QED setup with finite chiral molecules

Xiang Guo·Xiaojun Zhang·Yong Li·Zhihai Wang
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Abstract

We investigate enantiodetection for both a single cyclic three-level chiral molecule and finite ensembles of such molecules by monitoring the steady-state intracavity photon number in a cavity-QED platform. Our scheme exploits the intrinsic global $\pi$-phase difference between opposite enantiomers to engineer destructive and/or constructive interference pathways, enabling a direct readout of enantiomeric excess with an error below $5\%$. To capture mesoscopic many-molecule effects beyond mean field while avoiding brute-force master-equation simulations, we employ a generalized discrete truncated Wigner approximation, which is well suited for systems with many yet finite molecules. These results pave the way for implementing enantiodetection in realistic quantum-optical settings.

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Xiang Guo, Xiaojun Zhang, Yong Li, Zhihai Wang. 2025-11-13. Enantiodetection in a cavity QED setup with finite chiral molecules. https://arxiv.org/abs/2511.10061

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