Observation of Non-Markovian Evolution of Tripartite Quantum Steering

TL;DR

This paper experimentally investigates non-Markovian dynamics in tripartite quantum steering, revealing complex asymmetric structures and revival phenomena that deepen understanding of quantum correlations in noisy environments.

Contribution

It provides the first experimental observation of non-Markovian effects in multipartite quantum steering, including asymmetric steering structures across different bipartitions.

Findings

Demonstrated non-Markovian revival of tripartite quantum steering

Revealed asymmetric steering structures not present in bipartite systems

Highlighted potential of multipartite steering for quantum information processing

Abstract

The memory effects in open quantum systems can induce information backflow and revive quantum correlations, thereby providing a powerful way to protect and recover useful quantum resources in realistic noisy environments. However, such dynamics remains experimentally unexplored in multipartite quantum steering. Here we observe different non-Markovian evolution of tripartite quantum steering using Greenberger-Horne-Zeilinger-type mixed states, covering both death and revival processes. In particular, we experimentally demonstrate the more intricate asymmetric steering structure of tripartite quantum steering through different bipartitions, which do not arise in bipartite systems. Our results provide foundational insights into the hierarchical and directional structures in multipartite quantum steering, and highlight its potential as a useful resource for asymmetric quantum information processing.