【摘要】 使用4粒子纠缠态作为量子信道,在对4粒子纠缠态的纠缠系数方面并没有做确切要求的前提下,完成了未知3粒子纠缠态的隐形传态.在传输过程中,发送方对2对粒子进行Bell测量并公布结果,然后再对4粒子中的一个粒子作Hadamard操作之后,也对其进行测量,且将测量结果通过经典信道公布.接收方引进2个辅助粒子并实施一次控制非操作,再进行一组适当的幺正变换,便可实现未知3粒子纠缠态的概率量子隐形传态.更多还原

【Abstract】 By using a four-qubit non-maximally entangled state as quantum channel,under the condition of whose coefficients were unknown,a scheme of an unknown three-partical state’s teleportation was proposed.In the process of transmission the sender performed Bell state measurements to two pairs of particles and released finding,then completed a quantum controlled Hadamard gate operation and Bell state measurement to one of four particles,finally released finding via classical channel.By introducing two ancillary qubits,adopting a Controlled-Not gate and constructing a unitary transformation properly,the probabilistic teleportation of three-particle entangled state could be accomplished.更多还原