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    Area of Science:

    • Quantum optics
    • Atomic physics
    • Quantum information science

    Background:

    • Generating entangled states like the W state is crucial for quantum computing and communication.
    • Rydberg-atom-cavity systems offer a promising platform for quantum state preparation due to strong light-matter interactions.

    Purpose of the Study:

    • To propose and verify a dissipative scheme for preparing a tripartite W state.
    • To utilize quantum Zeno dynamics, Rydberg antiblockade, and spontaneous emission for robust state generation.

    Main Methods:

    • A dissipative quantum dynamics approach is employed.
    • Leveraging Rydberg antiblockade to control atomic interactions.
    • Utilizing atomic spontaneous emission as a cooling mechanism.
    • Simulating the system's evolution under realistic experimental parameters.

    Main Results:

    • The tripartite W state is identified as the unique steady state of the system.
    • The scheme demonstrates high robustness against cavity loss.
    • Experimental feasibility is confirmed with current parameters.
    • Achieved a fidelity exceeding 98% for the W state preparation.

    Conclusions:

    • The proposed dissipative scheme is an effective method for generating high-fidelity tripartite W states.
    • The approach is experimentally feasible and robust, paving the way for practical quantum applications.
    • This work contributes to the development of scalable quantum information processing using Rydberg atoms.