Quench dynamics of optically pumped electron-phonon systems

ORAL

Abstract

Motivated by recent experimental reports of novel phases in materials driven by intense radiation fields, we use numerically exact matrix product and exact diagonalization algorithms to simulate the dynamics of a metal driven at t = 0 by a pump that excites dipole-active vibrational modes that are either linearly or quadratically coupled to electrons. We find in certain situations that the electronic properties evolve to a state characterized by a high level of effective spatial disorder. These results have implications to current experiments on pumped metallic crystals.

*This work is supported by the NSF MRSEC program through Columbia University in the Center for Precision Assembly of Superstratic and Superatomic Solids under Grant No. DMR-1420634, NSF Grant No. CHE-1954791, DFG under Germany’s Excellence Strategy - Cluster of Excellence ML4Q EXC 2004/1 - 390534769, and from the Max Planck-New York City Center for Non-Equilibrium Quantum Phenomena. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by NSF grant number ACI-1548562, through allocation TG-DMR190074.

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Presenters

  • John Sous

    • Physics, Columbia University
    • Columbia Univ

Authors

  • John Sous

    • Physics, Columbia University
    • Columbia Univ

  • Benedikt Kloss

    • Columbia Univ

  • Dante Kennes

    • Institut fur Theorie der Statistischen Physik, RWTH Aachen
    • RWTH Aachen University
    • Institut für Theorie der Statistischen Physik, RWTH Aachen University
    • Institute for Theory of Statistical Physics, Aachen University
    • RWTH Aachen
    • Aachen
    • Institute for Theory of Statistical Physics, RWTH Aachen University

  • David Reichman

    • Department of Chemistry, Columbia University, New York, NY 10027, USA
    • Department of Chemistry, Columbia University
    • Columbia Univ

  • Andrew Millis

    • Columbia University
    • Department of Physics, Columbia University
    • Flatiron Institute
    • Columbia Univ
    • Center for Computational Quantum Physics, Flatiron Institute
    • Flatiron Institute; Columbia Univ.
    • Columbia University and Center for Computational Quantum Physics, Flatiron Institute