论文标题
基于端口的传送和受控传送能力的概括
Generalization of port-based teleportation and controlled teleportation capability
论文作者
论文摘要
作为原始量子传送的变体，已经提出了基于端口的传送，并且已经探索了其在量子信息处理中的各种有用应用。基于端口的传送中的两个用户最初共享一个任意的纯状态，可以通过将一个用户的本地操作应用于最大纠缠状态的两部分来表示。如果最大纠结状态是一个$ 200万美元的Qudit State，则可以将其表示为$ M $副本的最大最大状态，其中$ m $是端口的数量。我们在这里考虑通过使用任意双方资源的副本而不是纯最大纠结的副本获得的原始基于端口的传送的概括。通过概括，我们通过将受控的传送与基于端口的传送结合结合，并根据几个有意义的数量（例如传送忠诚度，纠缠忠诚度和完全纠缠的分数）来构建基于端口的传送的概念。此外，我们提出了新的数量，称为控制能力和给定三方量子状态上新的受控版本的最小控制能力。
As a variant of the original quantum teleportation, the port-based teleportation has been proposed, and its various kinds of useful applications in quantum information processing have been explored. Two users in the port-based teleportation initially share an arbitrary pure state, which can be represented by applying one user's local operation to a bipartite maximally entangled state. If the maximally entangled state is a $2M$-qudit state, then it can be expressed as $M$ copies of a two-qudit maximally entangled state, where $M$ is the number of the ports. We here consider a generalization of the original port-based teleportation obtained from employing copies of an arbitrary bipartite (mixed) resource instead of copies of a pure maximally entangled one. By means of the generalization, we construct a concept of the controlled port-based teleportation by combining the controlled teleportation with the port-based teleportation, and analyze its performance in terms of several meaningful quantities such as the teleportation fidelity, the entanglement fidelity, and the fully entangled fraction. In addition, we present new quantities called the control power and the minimal control power for the new controlled version on a given tripartite quantum state.
