Collective dissipation engineering of interacting Rydberg atoms

• URL: http://arxiv.org/abs/2509.06373v1
• Date: Mon, 08 Sep 2025 06:58:53 GMT
• Title: Collective dissipation engineering of interacting Rydberg atoms
• Authors: Tao Chen, Chenxi Huang, Jacob P. Covey, Bryce Gadway,
• Abstract summary: We realize a tunable, state-resolved laser-induced loss channel for individual Rydberg atoms.<n>We observe interaction-driven shifts of the exceptional point separating quantum Zeno and anti-Zeno regimes.<n>We theoretically show that when this mechanism is extended to many-body chains it allows for the dissipative distillation of unwanted spin configurations.
• Score: 6.334138773045702
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Engineered dissipation is emerging as an alternative tool for quantum state control, enabling high-fidelity preparation, transfer and stabilization, and access to novel phase transitions. We realize a tunable, state-resolved laser-induced loss channel for individual Rydberg atoms, in both non-interacting and strongly correlated settings. This capability allows us to reveal interaction-driven shifts of the exceptional point separating quantum Zeno and anti-Zeno regimes, and to demonstrate interaction-enhanced decay. By exploiting interaction-dependent energy level shifts, we observe a configuration-selective two-body Zeno effect that freezes target spin states. We theoretically show that when this mechanism is extended to many-body chains it allows for the dissipative distillation of unwanted spin configurations. These experimental studies establish a versatile approach for exploring strongly interacting, open quantum spin systems, and opens possible new routines for dissipative preparation of correlated quantum states in Rydberg atom arrays.

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