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    Chiral Entangled-State Generation through Dissipative Quantum Dynamics

    Huixia Gao1,2,*, Konghao Sun3,*, Yiwen Han4,*, Lei Xiao1,2, Dengke Qu1,2, Kunkun Wang5, Xiang Zhan1,2, Wei Yi6,7,8,9,†, and Peng Xue1,2,‡

    • *These authors contributed equally to this work.
    • †Contact author: wyiz@ustc.edu.cn
    • ‡Contact author: gnep.eux@gmail.com

    Phys. Rev. Lett. 137, 190403 – Published 3 November, 2026

    DOI: https://doi.org/10.1103/gwj5-2932

    Abstract

    Dissipation, though often detrimental to quantum entanglement, can be manipulated for the preparation of entangled states, wherein ingeniously designed quantum jump processes drive the system toward the desired steady state. Here we venture beyond this paradigm, and demonstrate a new type of entanglement generation in dissipative quantum dynamics. Combining driven-dissipative steady-state engineering and adiabatic passage, we propose a general protocol where the final entangled state depends on the chirality of the evolution path in the parameter space, a scheme that is further extendable to multipartite entanglement. By simulating the Liouvillian dynamics through the quantum Langevin equation for a pair of photons, we experimentally confirm the noise-resistant chiral preparation of various entangled states with high fidelity and concurrence. Our work establishes parametric chiral dynamics as a scalable and robust tool for controllable entanglement generation, paving the way for its applications in quantum information.

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