基于多参数测量的双向受控隐形传态

Bidirectional controlled teleportation based on multi-parameter measurements

融合了双向隐形传态、受控隐形传态、概率隐形传态及多参数测量思想,提出了一个新的双向受控概率隐形传态协议。在该协议中,以五粒子非最大纠缠团簇态为信道,发送者采用多参数通用测量,接收者引入辅助粒子,并在控制者的允许下,利用测量信息施行适当酉变换,就能以一定概率同时交换他们的量子态。分析了成功概率(经典耗费)与量子纠缠参数及测量参数间的依赖关系,说明了该协议可以根据量子信道的参数来调整多参数测量的参数,达到调节成功概率或经典耗费,满足真实世界中多种不同需求的目的。此外,该协议是经典双向受控隐形传态的推广。

Fusing the ideas of bidirectional teleportation,controlled teleportation,probabilistic teleportation and multiparameter measurements,this paper puts forward a new protocol for the implementation of probabilistic and controlled bidirectional teleportation.In this protocol,the five-particle non-maximally entangled cluster state is used as the channel,the senders adopt multi-parameter universal measurements,the receivers introduce auxiliary particles.Under the permission of the controller and using the measurement information to perform appropriate unitary transformation,their quantum states can be exchanged simultaneously with a certain probability.The dependency relationship between the success probability(classical cost)and entanglement parameters of quantum channel and measurement parameters is analyzed.It is shown that the protocol can adjust the parameters of multi-parameter measurement according to the parameters of quantum channel,so as to adjust the success probability or classical cost and satisfy various requirements in the real world.In addition,this protocol is a generalization of the classical bidirectional controlled teleportation.