Glassy dynamics in a disordered Heisenberg quantum spin system

ORAL

Abstract

The macroscopic nature of many-body systems is drastically changed by the presence of disorder in the medium which might induce new phases of matter like Spin glasses or Localization. We report on dynamics of an ultracold Rydberg gas which realizes a disordered quantum spin system. Here the role of disorder is particularly intriguing, giving rise to anomalously slow dynamics characterized by a stretched exponential function analogous to classical glasses. We find the characteristic exponent to be independent of the strength of disorder up to a critical value suggesting that slow dynamics is a generic property of disordered quantum spin systems

*This work is part of and supported by the DFG Collaborative Research Centre "SFB 1225 (ISOQUANT)", the DFG Priority Program "GiRyd 1929", the European Union H2020 projects FET Proactive project RySQ (Grant No. 640378) and FET flagship project PASQuanS (Grant No. 817482) and the Heidelberg Center for Quantum Dynamics. S.W. acknowledges support by "Investissements d'Avenir" programme through the Excellence Initiative of the University of Strasbourg (IdEx). T.F. acknowledges funding by a graduate scholarship of the Heidelberg University (LGFG) and R.F. from the Brazilian fund Ciência sem Fronteiras.

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Publication: Glassy Dynamics in a Disordered Heisenberg Quantum Spin System, Phys. Rev. X 11, 011011

Presenters

  • Clement Hainaut

    • Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
    • Physikalisches Institut, Heidelberg University
    • Physikalisches Institut, Heidelberg University, Germany

Authors

  • Clement Hainaut

    • Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
    • Physikalisches Institut, Heidelberg University
    • Physikalisches Institut, Heidelberg University, Germany

  • Annika Tebben

    • Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
    • Univ Heidelberg
    • Physikalisches Institut, Heidelberg University
    • Physikalisches Institut, Heidelberg University, Germany

  • Titus Franz

    • Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
    • Physikaliches Institut, Heidelberg University

  • Andre Salzinger

    • Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
    • Physikaliches Institut, Heidelberg University
    • Physikalisches Institut, Heidelberg University
    • Physikalisches Institut, Heidelberg University, Germany

  • Gerhard Zürn

    • Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
    • Physikaliches Institut, Heidelberg University
    • Physikalisches Institut, Universität Heidelberg
    • Physikalisches Institut, Heidelberg University, Germany

  • Martin Gärttner

    • Kirchhoff-Institut für Physik, Universität Heidelberg
    • Kirchhoff-Institut für Physik, Heidelberg University, Germany

  • Sebastian Geier

    • Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
    • Physikaliches Institut, Heidelberg University
    • Physikalisches Institut, Universität Heidelberg
    • Physikalisches Institut, Heidelberg University, Germany

  • Philipp Schultzen

    • Physikaliches Institut, Heidelberg University

  • Matthias Weidemüller

    • Physikaliches Institute, University of Heidelberg, Germany
    • Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
    • Univ Heidelberg
    • Physikalisches Institut, Universität Heidelberg
    • Physikalisches Institut, University of Heidelberg; Shanghai Branch, University of Science and Technology of China
    • Physikalisches Institut, Heidelberg University, Germany

  • Shannon Whitlock

    • Université de Strasbourg
    • Strasbourg University
    • IPCMS, University of Strasbourg and CNRS

  • Adrien Signoles

    • Institut d'Optique Graduate School
    • Pasqal