Coherent many-body spin dynamics in a long-range interacting Ising chain

Abstract

Coherent many-body quantum dynamics lies at the heart of quantum simulation and quantum computation. Both require coherent evolution in the exponentially large Hilbert space of an interacting many-body system. To date, trapped ions have defined the state of the art in terms of achievable coherence times in interacting spin chains. Here, we establish an alternative platform by reporting on the observation of coherent, fully interaction-driven quantum revivals of the magnetization in Rydberg-dressed Ising spin chains of atoms trapped in an optical lattice. We identify partial many-body revivals at up to about ten times the characteristic time scale set by the interactions. At the same time, single-site-resolved correlation measurements link the magnetization dynamics with inter-spin correlations appearing at different distances during the evolution. These results mark an enabling step towards the implementation of Rydberg atom based quantum annealers, quantum simulations of higher dimensional complex magnetic Hamiltonians, and itinerant long-range interacting quantum matter.

11 pages, 9 figures

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Cited by in corpus (14)

• Probing many-body dynamics on a 51-atom quantum simulator
• Many-Body Physics with Individually-Controlled Rydberg Atoms
• The physics of higher-order interactions in complex systems
• A concise review of Rydberg atom based quantum computation and quantum simulation
• Transverse-Field Ising Dynamics in a Rydberg-Dressed Atomic Gas
• Geometric quantum speed limits and short-time accessibility to unitary operations
• Almost exact state transfer in a spin chain via pulse control
• Transition Slow-Down by Rydberg Interaction of Neutral Atoms and a Fast Controlled-NOT Quantum Gate
• Ultracold Bose Mixtures with Spin-Dependent Fermion-Mediated Interactions
• Supersolid phases of Rydberg-excited bosons on a triangular lattice
• Quench dynamics of a dissipative Rydberg gas in the classical and quantum regime
• Rydberg-dressed Fermi liquid: correlations and signatures of droplet crystallization
• Evolution of static and dynamical density correlations in a one-dimensional soft-core gas from the Tonks-Girardeau limit to a clustering fluid
• Spatial structure of magnetic polarons in strongly interacting antiferromagnets