Quantum Correlation Sharing: A Review On Recent Progress From Nonlocality To Other Non-Classical Correlations

TL;DR

This review comprehensively summarizes recent progress in quantum correlation sharing via sequential measurements, covering nonlocality, steering, entanglement, and applications like quantum random access coding and self-testing.

Contribution

It provides a detailed synthesis of recent theoretical and experimental advances in quantum correlation sharing, highlighting new measurement strategies and potential applications.

Findings

Nonlocality sharing can be achieved under various measurement strategies.

Quantum steering sharing is feasible with specific scenarios.

Applications include quantum random access coding and self-testing.

Abstract

This review offers a comprehensive exploration and synthesis of recent advancements in the domain of quantum correlation sharing facilitated through sequential measurements. We initiate our inquiry by delving into the interpretation of the joint probability, laying the foundation for an examination of quantum correlations within the context of specific measurement methods. The subsequent section meticulously explores nonlocal sharing under diverse measurement strategies and scenarios, with a specific focus on investigating the impact of these strategies on the dissemination of quantum nonlocality. Key perspectives such as "asymmetry" and "weak value" are scrutinized through detailed analyses across various scenarios, allowing us to evaluate the potential of nonlocality sharing. We also provide a retrospective overview of experimental endeavors associated with this phenomenon. The third part of our exploration presents research findings on steering sharing, offering clarity on the feasibility of steering sharing and summarizing the distinctive properties of quantum steering sharing in different scenarios. Continuing our journey, the fourth section delves into discussions on the sharing of diverse quantum correlations, encompassing network nonlocality, quantum entanglement, and quantum contextuality. Moving forward, the fifth section conducts a comprehensive review of the progress in the application of quantum correlation sharing, specifically based on sequential measurement strategies. Applications such as quantum random access coding, random number generation, and self-testing tasks are highlighted. Finally, we discuss and list some of the key unresolved issues in this research field, and conclude the entire article.