# Landau-Zener topological quantum state transfer

## TL;DR

This paper proposes a robust quantum state transfer method using topologically protected edge states in a spin chain, leveraging Landau-Zener tunneling to enhance robustness against disorder without increasing transfer time.

## Contribution

It introduces a novel Landau-Zener assisted topological quantum state transfer scheme that improves robustness over existing Rabi flopping methods.

## Key findings

- Enhanced robustness against disorder compared to previous protocols
- Maintains transfer speed without increasing interaction time
- Utilizes topological edge states in a dimeric SSH spin chain

## Abstract

Fast and robust quantum state transfer (QST) is a major requirement in quantum control and in scalable quantum information processing. Topological protection has emerged as a promising route for the realization of QST robust against sizable imperfections in the network. Here we present a scheme for robust QST of topologically protected edge states in a dimeric Su-Schrieffer-Heeger spin chain assisted by Landau-Zener tunneling. As compared to topological QST protocols based on Rabi flopping proposed in recent works, our method is more advantageous in terms of robustness against both diagonal and off-diagonal disorder in the chain, without a substantial increase of the interaction time.