Enhancement of Local Pairing Correlations in Periodically Driven Mott Insulators
Strongly Correlated Electrons
2020-04-08 v2
Abstract
We investigate a model for a Mott insulator in presence of a time-periodic modulated interaction and a coupling to a thermal reservoir. The combination of drive and dissipation leads to non-equilibrium steady states with a large number of doublon excitations, well above the maximum thermal-equilibrium value. We interpret this effect as an enhancement of local pairing correlations, providing analytical arguments based on a Floquet Hamiltonian. Remarkably, this Hamiltonian shows a tendency to develop long-range staggered superconducting correlations. This suggests the possibility of realizing the elusive eta-pairing phase in driven-dissipative Mott Insulators.
Keywords
Cite
@article{arxiv.1904.00857,
title = {Enhancement of Local Pairing Correlations in Periodically Driven Mott Insulators},
author = {Francesco Peronaci and Olivier Parcollet and Marco Schiró},
journal= {arXiv preprint arXiv:1904.00857},
year = {2020}
}
Comments
6+5 pages