多拷贝与催化超激活真多体非局域性
Multi-copy and Catalytic Superactivation of Genuine Multipartite Nonlocality
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中文总结 AI 辅助
本文发现真多体非局域性（GMNL）可被超激活：通过局部连接两个非GMNL拷贝或单拷贝催化协议，可产生GMNL关联，质疑了其定义的操作意义。
中文摘要 AI 辅助
真多体贝尔非局域性（GMNL）旨在捕捉多个远距离观测者之间全局贝尔非局域的关联。GMNL的常用定义基于由非信号关联构建的双可分离模型。在此框架中，我们揭示了GMNL的超激活效应。具体而言，通过局部连接两个双可分离关联（即非GMNL）的拷贝，可以获得一个GMNL关联。我们证明这对于任意数量的参与方以及量子可实现关联都是可能的。最后，我们展示了GMNL的超激活也可以在单拷贝层面实现，通过仅涉及局部布线的催化协议。这些结果质疑了GMNL这一定义的操作意义。
英文摘要
Genuine multipartite Bell nonlocality (GMNL) aims at capturing correlations between many distant observers that are globally Bell nonlocal. A commonly used definition for GMNL is based on biseparable models constructed from non-signalling correlations. Here we uncover an effect of superactivation of GMNL in this framework. Specifically, by locally wiring together two copies of a biseparable correlation, i.e. not GMNL, one can obtain another correlation that is GMNL. We show that this is possible for any number of parties, and for quantum-realizable correlations. Finally, we show that superactivation of GMNL is also possible at the single-copy level, via a catalytic protocol involving only local wirings. These results question the operational meaning of this definition of GMNL.
发表机构
- University of Geneva（日内瓦大学）
- Inria, Télécom Paris - LTCI, Institut Polytechnique de Paris（法国国家信息与自动化研究所，巴黎高等电信学校-通信与图像处理实验室，巴黎理工学院）
机构由 AI 辅助整理，请以论文原文为准。
