Suppression of Quantum Correlations in a Clean-Disordered Atom-Nanophotonic Interface

• URL: http://arxiv.org/abs/2412.13524v1
• Date: Wed, 18 Dec 2024 05:51:34 GMT
• Title: Suppression of Quantum Correlations in a Clean-Disordered Atom-Nanophotonic Interface
• Authors: I Gusti Ngurah Yudi Handayana, Yi-Lin Tsao, H. H. Jen,
• Abstract summary: We study the influence of clean system size on high-order quantum correlations in an atom-nanophotonic system. Our results manifest distinct quantum correlations enabled by long-range interactions mediated by the waveguide.
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• Abstract: Quantum correlations are essential to the emergent behaviors of quantum systems, supporting key phenomena such as localization or delocalization of particles, quantum avalanches in many-body localized systems, and quantum information transfer. In open atom-nanophotonic systems characterized by long-range spin-exchange interactions, we examine the influence of clean system size on high-order quantum correlations among a clean-disordered atomic array with multiple atomic excitations. By initializing the system far from equilibrium, we observe a suppression of quantum correlations for localized atomic excitations in the disordered zone as the clean system size increases, showcasing the delocalization behavior in the high-order spin-exchange processes. The calculation of the entanglement entropy at the interface further substantiates this thermalizing effect. Our results manifest distinct quantum correlations enabled by long-range interactions mediated by the waveguide, enhance the theoretical comprehension of clean-disordered systems, and provide insights to nonequilibrium quantum dynamics in an atom-nanophotonic platform.

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