通过四个纠缠态粒子来实现未知的三个纠缠态粒子的量子几率隐形传输

Probabilistic Teleportation of an Unknown Entangled State of Three Particles by a Entangled State of Four Particles

提出一种分别利用四个三态粒子的最大纠缠态和非最大纠缠态作为量子通道来传输一未知的三个三态粒子纠缠态的方案。首先考察量子通道是最大纠缠态的情况,然后进一步考察量子通道是非最大纠缠态的情况,同时发现在后者情况时,通过引进一个辅助粒子,并构造一幺正变换矩阵,即可以一定的几率完成该三态粒子纠缠态的隐形传输。

We propose a scheme for probabilistically teleporting an unknown three-particle entangled state of three-level by using a four-particle entangled state of three-level as quantum channel. Firstly, the maximally entangled state is taken as quantum channel, then, the case of non-maximally entangled state is considered. We find that when the channel is non-maximally entangled state, by introducing an ancillary qubit and constructing an unitary transformation properly, the teleportation of three-particle entangled state can be accomplished with certain probability.