Controlled localization of interacting bosons in a disordered optical lattice

TL;DR

This paper demonstrates how a fast oscillatory force can control tunneling and localization of interacting bosons in a disordered optical lattice, with potential implications for manipulating phase diagrams in larger systems.

Contribution

It introduces a method to control localization in disordered bosonic systems using Floquet engineering, based on exact solutions of the time-dependent Schrödinger equation.

Findings

Fast oscillatory force modulates tunneling and localization.

Control over phase diagram of disordered-interacting bosons.

Potential for manipulating quantum phases in larger systems.

Abstract

We show that tunneling and localization properties of interacting ultracold atoms in an optical lattice can be controlled by adiabatically turning on a fast oscillatory force even in the presence of disorder. Our calculations are based on the exact solution of the time-dependent Schroedinger equation, using the Floquet formalism. Implications of our findings for larger systems and the possibility of controlling the phase diagram of disordered-interacting bosonic systems are discussed.