发表机构
University of Geneva; Geneva Quantum Centre, University of Geneva（日内瓦大学; 日内瓦量子中心，日内瓦大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文在量子催化框架下，证明非分割可分离的双可分离态可借助催化剂和局域操作确定性转化为真正多体纠缠态，并构建“和到积”协议，应用于随机网络纠缠态，实现GME与真正多体贝尔非局域性的催化激活。
AI 中文摘要
我们证明了在量子催化的框架内，激活真正多体纠缠（GME）——多体态中最强的纠缠形式——的可能性。具体而言，我们表明，任何非分割可分离的双可分离态（即非GME态）都可以通过催化剂和局域操作的帮助，在没有经典通信的情况下，确定性地转化为GME态。进而，我们构建了一个针对多体情况定制的催化协议。该协议被称为“和到积”，因为它以宣告的方式将态的混合转化为它们的张量积。我们将此协议应用于随机网络纠缠态，这些态在构造上是双可分离的，并展示了GME和真正多体贝尔非局域性的催化激活。
英文摘要
We demonstrate the possibility to activate genuine multipartite entanglement (GME), the strongest form of entanglement for multipartite states, within the framework of quantum catalysis. Specifically, we show that any biseparable state (i.e. not GME) that is not partition separable can be deterministically transformed into a GME state via the help of a catalyst and local operations, without any classical communication. In turn, we construct a catalytic protocol tailored to the multipartite case. The protocol is termed "sum-to-product", as it transforms a mixture of states into their tensor product in a heralded manner. We apply this protocol to random network entangled states, which are biseparable by construction, and demonstrate catalytic activation of both GME and genuine multipartite Bell nonlocality.
Comments6+5 pages; 1+2 figures
