Dynamic Localization in Optical Lattices

TL;DR

This paper investigates dynamic localization in driven optical lattices, showing it remains robust against interband transitions and proposing control of metal-insulator transitions via quasienergy band collapse.

Contribution

It provides model calculations demonstrating the robustness of dynamic localization and suggests a method to control metal-insulator transitions in optical lattices.

Findings

Localization remains unaffected by interband transitions with proper parameters

Quasienergy band collapse can be exploited for coherent control of phase transitions

Potential applications in quantum simulation and control

Abstract

We recapitulate the principle enabling the phenomenon of dynamic localization, and provide model calculations for ultracold atoms in driven optical lattices which indicate that the localization effect remains almost unaffected by interband transitions if the parameters are chosen carefully. In addition, we suggest to exploit the underlying quasienergy band collapse for coherently controlling the metal-insulator transition that occurs in the Harper model, as realized with quasiperiodic optical lattices.