How periodic driving heats a disordered quantum spin chain
Statistical Mechanics
2016-07-20 v1 Disordered Systems and Neural Networks
Abstract
We study the energy absorption in real time of a disordered quantum spin chain subjected to coherent monochromatic periodic driving. We determine characteristic fingerprints of the well-known ergodic (Floquet-ETH for slow driving/weak disorder) and many-body localized (Floquet-MBL for fast driving/strong disorder) phases. In addition, we identify an intermediate regime, where the energy density of the system -- unlike the entanglement entropy a local and bounded observable -- grows logarithmically slowly over a very large time window.
Cite
@article{arxiv.1603.03054,
title = {How periodic driving heats a disordered quantum spin chain},
author = {Jorge Rehn and Achilleas Lazarides and Frank Pollmann and Roderich Moessner},
journal= {arXiv preprint arXiv:1603.03054},
year = {2016}
}