Engineering of Landau-Zener tunneling

TL;DR

This paper explores methods to control Landau-Zener tunneling in Wannier-Stark systems, highlighting the influence of initial conditions, system parameters, and time-dependent disorder on tunneling behavior in ultracold bosons.

Contribution

It introduces new insights into controlling tunneling via initial states, parameters, and noise, with a focus on ultracold bosonic systems.

Findings

Tunneling depends on initial conditions and system parameters.

Time-dependent disorder significantly affects tunneling.

Control strategies for tunneling are proposed and analyzed.

Abstract

Several ways are discussed how to control the Landau-Zener tunneling in the Wannier-Stark system. We focus on a realization of this system with interacting and noninteracting ultracold bosons. The tunneling from the ground band to the continuum is shown to depend crucially on the initial condition and system parameters and, more interestingly, on added timedependent disorder -- noise -- on the lattice beams.