Analytical theory of many-body localization in the presence of periodic drive
arXiv:1702.01431
Abstract
Many-body localization transition in a periodically driven quantum system is investigated using a solution of a matching Bethe lattice problem for Floquet states of a quantum random energy model with a generalization to more realistic settings. It turns out that an external periodic field can both suppress and enhance localization depending on field amplitude and frequency which leads to three distinguishable regimes of field enhanced, controlled and suppressed delocalization. The results can be verified experimentally in systems of cold atoms and/or interacting spin defects in semiconductors.
Three figures in main text and six in Supplementary Materials. To be submitted within a week. Comments are welcome