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Thomas Pohl

Coherent Many-Body Spin Dynamics in a Long-Range Interacting Ising Chain

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DOI

  • Johannes Zeiher, Max Planck Inst Quantum Opt
  • ,
  • Jae-yoon Choi, Max Planck Inst Quantum Opt
  • ,
  • Antonio Rubio-Abadal, Max Planck Inst Quantum Opt
  • ,
  • Thomas Pohl
  • Rick van Bijnen, Austrian Acad Sci, Inst Quantenopt & Quanteninformat
  • ,
  • Immanuel Bloch, Ludwig Maximilians Univ Munchen, University of Munich, Fak Phys
  • ,
  • Christian Gross, Max Planck Inst Quantum Opt

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 partialmany-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 interspin 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.

Original languageEnglish
Article number041063
JournalPhysical Review X
Volume7
Issue4
Number of pages6
ISSN2160-3308
DOIs
Publication statusPublished - 14 Dec 2017

    Research areas

  • TRAPPED IONS, QUANTUM, STATES, COLLAPSE, REVIVAL, SYSTEM, PROPAGATION, GENERATION, LATTICE, LIGHT

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