Multipartite entanglement plays a crucial role for the design of the Quantum Internet, due to its potentiality of significantly increasing the network performance. In this paper, we design an entanglement access control protocol for multipartite state, which exhibits several attractive features. Specifically, the designed protocol is able to jointly extract in a distributed way an EPR pair from the original multipartite entangled state shared by the set of network nodes, and to univocally determines the identities of the transmitter node and the receiver node in charge of using the extracted EPR pair. Furthermore, the protocol avoids to delegate the signaling arising with entanglement access control to the classical network, with the exception of the unavoidable classical communications needed for EPR extraction and qubit teleportation. Finally, the protocol supports the anonymity of the entanglement accessing nodes.

翻译：多部分缠绕对于量子互联网的设计具有关键作用,因为它具有显著提高网络性能的潜力。在本文中,我们为多部分状态设计了一个缠绕入口控制协议,具有若干吸引人的特征。具体地说,设计协议能够以分布方式从一组网络节点共享的原始多部分缠绕状态中联合提取EPR配对,并统一确定发射节点和负责使用提取的 EPR对接头的接收器节点的身份。此外,协议避免将因缠绕入口控制而产生的信号下放到古典网络,但ERPR提取和等离子传输所需的不可避免的传统通信除外。最后,协议支持对访问节点的缠绕的匿名性。