Adiabatic quantum state transfer in tight-binding chains using periodic driving fields

TL;DR

This paper proposes a robust adiabatic quantum state transfer method in tight-binding chains using periodic driving fields, enabling high-fidelity transport without local control and tolerating imperfections.

Contribution

It introduces a new theoretical approach for coherent quantum transport in tight-binding chains with external periodic driving, enhancing robustness and scalability.

Findings

High-fidelity adiabatic transport achieved

Robust against lattice imperfections and disorder

Effective in long chains without local control

Abstract

A method for high-fidelity coherent adiabatic transport in a zig-zag tight-binding chain, based on application of two external periodic driving fields, is theoretically proposed. The method turns out to be robust against imperfections and disorder of the static lattice Hamiltonian, is tolerant to next-nearest neighborhood interactions, and enables coherent transport in long chains without the need for a local control and timing of the trapping potential.