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理论物理通讯：英文版

Remote Preparation of Three-Particle GHZ Class States

Liu ., Yimin, Wang, Zhang-Yin, Jun, Zhang, Zhan-Jun

Published Jan 1, 2008• 2 citations
OpenAlex

Abstract

我们建议三粒子的 Greenberger Horne Zeilinger (GHZ ) 班状态的一个遥远的州的准备(RSP ) 计划，在量隧道由二个格言联盟者组成的地方纠缠的状态。在向前古典的位的帮助下，原来的状态的准备能成功地与概率 1/2 被认识到，必要古典通讯费用平均是 0.5 小点。如果要准备的状态属于一些特殊状态，准备的成功概率能在平均消费一额外的位以后完成 1。我们然后概括这个计划到量隧道由二个 non-maximally 纠缠的状态组成的盒子。

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我们建议三粒子的 Greenberger Horne Zeilinger (GHZ ) 班状态的一个遥远的州的准备(RSP ) 计划，在量隧道由二个格言联盟者组成的地方纠缠的状态。在向前古典的位的帮助下，原来的状态的准备能成功地与概率 1/2 被认识到，必要古典通讯费用平均是 0.5 小点。如果要准备的状态属于一些特殊状态，准备的成功概率能在平均消费一额外的位以后完成 1。我们然后概括这个计划到量隧道由二个 non-maximally 纠缠的状态组成的盒子。
We propose a remote state preparation (RSP) scheme of three-particle Greenberger–Horne–Zeilinger (GHZ) class states, where quantum channels are composed of two maximally entangled states. With the aid of forward classical bits, the preparation of the original state can be successfully realized with the probability 1/2, the necessary classical communication cost is 0.5 bit on average. If the state to be prepared belongs to some special states, the success probability of preparation can achieve 1 after consuming one extra bit on average. We then generalize this scheme to the case that the quantum channels consist of two non-maximally entangled states.
我们在场秘密消息由另外一个宣布了的为在哪个各给参加商谈者罐头合法地位的遥远的秘密会议安全地读出的多党的量的二个计划，而是一个邪恶偷听者不能关于它得到任何东西。第一把基于所有聚会与 Greenberger Horne Zeilinger (GHZ ) 状态高效地并且安全地分享的一样的钥匙，并且每个参加商谈者与一次性的垫秘密成员系统送他的秘密消息给其它。另一个用一把量钥匙基于量加密， GHZ 状态的一个序列在所有参加商谈者之中分享了并且在证实他们的安全以后反复使用了。当他们为 qubits 的内在的效率接近最大的价值，两个这些计划是最佳的。
A remote state preparation(RSP) scheme of a three-qubit Greenberger Horne Zeilinger(GHZ) class state was proposed by using three two-qubit maximally entangled states as the quantum channel.The success probability of preparation and classical communication cost were calculated.Generally speaking,according to Alice's classical message,with probability 1/4 Bob could successfully prepare the GHZ state.However,for three kinds of special states,the success probability of preparation could be increased to 1.0 after consuming some extra bits.Then the scheme was deterministic.