en
Scientific article
Open access
English

Steady states of interacting Floquet insulators

Published inPhysical Review. B, Condensed Matter, vol. 99, no. 1, 014307
Publication date2019
Abstract

Floquet engineering offers tantalizing opportunities for controlling the dynamics of quantum many-body systems and realizing new nonequilibrium phases of matter. However, this approach faces a major challenge: generic interacting Floquet systems absorb energy from the drive, leading to uncontrolled heating which washes away the sought-after behavior. How to achieve and control a nontrivial nonequilibrium steady state is therefore of crucial importance. In this work, we study the dynamics of an interacting one-dimensional periodically driven electronic system coupled to a phonon heat bath. Using the Floquet-Boltzmann equation (FBE) we show that the electronic populations of the Floquet eigenstates can be controlled by the dissipation. We find the regime in which the steady state features an insulator-like filling of the Floquet bands, with a low density of additional excitations. Furthermore, we develop a simple rate equation model for the steady state excitation density that captures the behavior obtained from the numerical solution of the FBE over a wide range of parameters.

Research group
Citation (ISO format)
SEETHARAM, Karthik I. et al. Steady states of interacting Floquet insulators. In: Physical Review. B, Condensed Matter, 2019, vol. 99, n° 1, p. 014307. doi: 10.1103/PhysRevB.99.014307
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal1098-0121
281views
141downloads

Technical informations

Creation01/07/2020 6:28:00 PM
First validation01/07/2020 6:28:00 PM
Update time03/15/2023 6:42:24 PM
Status update03/15/2023 6:42:23 PM
Last indexation01/17/2024 8:42:24 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack