Non-reciprocity and quantum correlations of light transport in hot atoms via reservoir engineering

• URL: http://arxiv.org/abs/2104.11921v2
• Date: Mon, 17 May 2021 03:07:52 GMT
• Title: Non-reciprocity and quantum correlations of light transport in hot atoms via reservoir engineering
• Authors: Xingda Lu, Wanxia Cao, Wei Yi, Heng Shen, and Yanhong Xiao
• Abstract summary: We demonstrate non-reciprocal light transport in a quantum system of hot atoms by engineering the dissipative atomic reservoir. We observe inter-channel quantum correlations which originate from interactions with the judiciously engineered reservoir. The non-reciprocal transport in a quantum optical atomic system constitutes a new paradigm for atom-based, non-reciprocal optics.
• Score: 0.37515646463759694
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The breaking of reciprocity is a topic of great interest in fundamental physics and optical information processing applications. We demonstrate non-reciprocal light transport in a quantum system of hot atoms by engineering the dissipative atomic reservoir. Our scheme is based on the phase-sensitive light transport in a multi-channel photon-atom interaction configuration, where the phase of collective atomic excitations is tunable through external driving fields. Remarkably, we observe inter-channel quantum correlations which originate from interactions with the judiciously engineered reservoir. The non-reciprocal transport in a quantum optical atomic system constitutes a new paradigm for atom-based, non-reciprocal optics, and offers opportunities for quantum simulations with coupled optical channels.

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