真正多体纠缠的超激活与不可压缩性

真正的多体贝尔非局域性的超激活从双体纠缠开始

Superactivation of genuine multipartite Bell nonlocality from two-party entanglement

研究揭示了通过双体纠缠在多复制情况下实现真正的多体非局域性的最弱资源，提出了一种高效的认证方法和完美并行重复结果。

Superactivation, unlockability, and secrecy distribution of bound information

Bound information, a cryptographic classical analogue of bound entanglement, is defined as classical secret correlations from which no secret key can be extracted. Its existence was conjectured and shown in a multipartite case. In this work, we provide a new example of bound information in a four-partite scenario. Later, using this example, we prove that bound information can be superactivated in a finite-copy scenario and unlockable. We also show that bound entangled states (bound information) can be used to distribute multipartite pure-state entanglement (secret key).

多光子蒸馏网络中的纠缠超激活效应

Entanglement Superactivation in Multiphoton Distillation Networks

本研究基于八光子平台构建三体纠缠蒸馏方案，验证了多体纠缠超激活及新型纠缠超激活现象，为量子网络资源回收与多体纠缠研究提供了新支撑。

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

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。

Superactivation of monogamy relations for nonadditive quantum correlation measures

We investigate the general monogamy and polygamy relations satisfied by quantum correlation measures. We show that there exist two real numbers $α$ and $β$ such that for any quantum correlation measure $Q$, $Q^x$ is monogamous if $x\geq α$ and polygamous if $0\leq x\leq β$ for a given multipartite state $ρ$. For $β<x<α$, we show that the monogamy relation can be superactivated by finite $m$ copies $ρ^{\otimes m}$ of $ρ$ for nonadditive correlation measures. As a detailed example, we use the negativity as the quantum correlation measure to illustrate such superactivation of monogamy properties.…

哈达玛映射下 genuine 多体纠缠的可压缩性

Compressibility of genuine multipartite entanglement under the Hadamard map

该研究以哈达玛映射为例，探讨多体纠缠超激活中的局域投影，发现存在最优拷贝数，超过后纠缠下降，区分了纠缠蒸馏与局域投影方案的差异。