Zhao等提出利用一个八粒子团簇态作为量子信道,实现一个未知六粒子纠缠态的隐形传态方案, 他们的方案中发送方需要执行一个八粒子冯·诺依曼投影测量。对他们的方案进行了改进,利用一个四粒子团簇态作为量子信道 传送该未知六粒子纠缠态,发送方只需执行简单的门操作和单粒子测量,接收方执行适合的幺正操作并引入四个辅助粒子,就能完成隐形 传输的任务。在IBM公司的量子云计算平台上实现了所提出方案的原理验证。与之前的方案相比,所提出改进方案具有低资源消耗、 高传送效率和易于实验实现的优点。

Zhao et al . proposed a quantum teleportation scheme for an unknown six-qubit entangled state using an eight-qubit cluster state as a quantum channel. In their scheme, the sender needs to operate an eight-qubit von-Neumann projective measurement. Some improvements have been made to their scheme, which uses a four-qubit cluster state as a quantum channel to transmit the unknown six-qubit entangled state. In the improved scheme, to complete the task of quantum teleportation, the sender only needs to perform simple gate operations and single-qubit measurements, and the receiver needs to perform appropriate unitary operations and introduce four auxiliary particles. The principle verification experiment of the proposed scheme is carried out on the cloud-based quantum computing platform of IBM company. Compared with the previous schemes, the proposed scheme has the advantages of low resource consumption, high transmission efficiency and easy experiment implementation.