Enantiodetection in a cavity QED setup with finite chiral molecules

• URL: http://arxiv.org/abs/2511.10061v1
• Date: Fri, 14 Nov 2025 01:29:43 GMT
• Title: Enantiodetection in a cavity QED setup with finite chiral molecules
• Authors: Xiang Guo, Xiaojun Zhang, Yong Li, Zhihai Wang,
• Abstract summary: We exploit the intrinsic global $$-phase difference between opposite enantiomers to engineer destructive and/or constructive interference pathways.<n>To capture mesoscopic many-molecule effects beyond mean field, we employ a generalized discrete truncated Wigner approximation.<n>These results pave the way for implementing enantiodetection in realistic quantum-optical settings.
• Score: 15.248513260571753
• License: http://creativecommons.org/publicdomain/zero/1.0/
• 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 $π$-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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