4.6 Article

Emergence of stationary many-body entanglement in driven-dissipative Rydberg lattice gases

Journal

NEW JOURNAL OF PHYSICS
Volume 17, Issue -, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/17/11/113053

Keywords

quantum-reservoir engineering; quantum many-body physics; steady-state entanglement; non-equilibrium quantum dynamics; Rydberg atoms; quantum information science; quantum optics

Funding

  1. NSERC
  2. Ontario Ministry of ResearchInnovation
  3. KIST Institutional Program [2V04280]
  4. Industry Canada

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Non-equilibrium quantum dynamics represents an emerging paradigm for condensed matter physics, quantum information science, and statistical mechanics. Strongly interacting Rydberg atoms offer an attractive platform to examine driven-dissipative dynamics of quantum spin models with long-range order. Here, we explore the conditions under which stationary many-body entanglement persists with near-unit fidelity and high scalability. In our approach, coherent many-body dynamics is driven by Rydberg-mediated laser transitions, while atoms at the lattice boundary locally reduce the entropy of the many-body system. Surprisingly, the many-body entanglement is established by continuously evolving a locally dissipative Rydberg system towards the steady state, precisely as with optical pumping. We characterize the dynamics of multipartite entanglement in an one-dimensional lattice by way of quantum uncertainty relations, and demonstrate the long-range behavior of the stationary entanglement with finite-size scaling. Our work opens a route towards dissipative preparation of many-body entanglement with unprecedented scaling behavior.

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