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  • Letter
  • Open Access

Charge-order melting in the one-dimensional Edwards model

Florian Lange1, Gerhard Wellein1, and Holger Fehske1,2

  • 1Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen National High Performance Computing Center (NHR@FAU), 91058 Erlangen, Germany
  • 2Institute of Physics, University of Greifswald, 17489 Greifswald, Germany

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Phys. Rev. Research 6, L022007 – Published 8 April, 2024

DOI: https://doi.org/10.1103/PhysRevResearch.6.L022007

Abstract

We use infinite matrix-product-state techniques to study the time evolution of the charge-density-wave (CDW) order after a quench or a light pulse in a fundamental fermion-boson model. The motion of fermions in the model is linked to the creation of bosonic excitations, which counteracts the melting of the CDW order. For low-energy quenches corresponding to a change of the boson relaxation rate, we find behavior similar to that in an effective t−V model. When the boson energy is quenched instead or a light pulse is applied to the system, the transient dynamics are more complex, with the CDW order first quickly decreasing to an intermediate value while the density-wave-like order of the bosons rises. In the case of pulse irradiation, the subsequent time evolution of the CDW order depends strongly on the photon frequency. For frequencies slightly below the boson energy, we observe a temporary increase of the CDW order parameter. Our results reveal the complex physics of driven Mott insulators in low-dimensional systems with strong correlations.

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Outline

Information

Phys. Rev. Research 6, L022007– Published 8 April, 2024
  • Received 25 October 2023
  • Revised 22 January 2024
  • Accepted 5 March 2024
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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