Dynamical Order and Superconductivity in a Frustrated Many-Body System

ORAL

Abstract

In triangular lattice structures, spatial anisotropy and frustration can lead to rich equilibrium phase diagrams with regions containing complex, highly entangled states of matter. We study the driven two-rung triangular Hubbard model and evolve these states out of equilibrium, observing how the interplay between the driving and the initial state unexpectedly shuts down the particle-hole excitation pathway. This restriction, which symmetry arguments fail to predict, dictates the transient dynamics of the system, causing the available particle-hole degrees of freedom to manifest uniform long-range order. Our results have implications for a recent experiment on photoinduced superconductivity in κ−(BEDT−TTF)2Cu[N(CN)2]Br molecules.

*This work has been supported by EPSRC Grants No. EP/P009565/1 and No. EP/K038311/1 and is partially funded by the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013)/ERC Grant Agreement No. 319286 Q-MAC.

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Presenters

  • Joseph Tindall

    • University of Oxford

Authors

  • Joseph Tindall

    • University of Oxford

  • Frank Schlawin

    • Max Planck Institute for the Structure and Dynamics of Matter

  • Michele Buzzi

    • Max Planck Institute for the Structure and Dynamics of Matter

  • Daniele Nicoletti

    • Max Planck Institute for the Structure and Dynamics of Matter

  • Hongmin Gao

    • University of Oxford

  • Jonathan Coulthard

    • University of Oxford

  • Andrea Cavalleri

    • Max Planck Inst Structure & Dynamics of Matter
    • Max Planck Institute for the Structure and Dynamics of Matter

  • Michael Sentef

    • Max Planck Inst Structure & Dynamics of Matter
    • theory department, Max Planck Institute for the Structure and Dynamics of Matter
    • Theory, Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany

  • Dieter Jaksch

    • University of Oxford
    • Clarendon Laboratory, University of Oxford