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arXiv 1707.02449quant-ph
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确定性量子密集编码网络

Deterministic Quantum Dense Coding Networks

Saptarshi Roy, Titas Chanda, Tamoghna Das, Aditi Sen De, Ujjwal Sen

摘要:

我们考虑的情况下,确定性的经典信息传输之间的多个发射机和一个单一的接收器,当他们先验共享一个多部分的量子态-一个尝试建立一个确定性的密集编码网络。具体来说,我们证明了在两个或三个接收器和一个单一的接收器的情况下,广义Greenberger-Horne-Zeilinger(gGHZ)状态是没有好处的发送经典信息确定性超过经典的限制,除非当共享状态是GHZ状态本身。另一方面,具有特定参数的三量子比特和四量子比特广义W(gW)态以及四量子比特Dicke态可以提供在确定性密集编码中发送信息的量子优势。然而,有趣的是,在三量子比特场景中的数值模拟显示,来自GHZ类的确定性密集可编码的状态的百分比高于来自W类的状态的百分比。

英文摘要:

We consider the scenario of deterministic classical information transmission between multiple senders and a single receiver, when they a priori share a multipartite quantum state -- an attempt towards building a deterministic dense coding network. Specifically, we prove that in the case of two or three senders and a single receiver, generalized Greenberger-Horne-Zeilinger (gGHZ) states are not beneficial for sending classical information deterministically beyond the classical limit, except when the shared state is the GHZ state itself. On the other hand, three- and four-qubit generalized W (gW) states with specific parameters as well as the four-qubit Dicke states can provide a quantum advantage of sending the information in deterministic dense coding. Interestingly however, numerical simulations in the three-qubit scenario reveal that the percentage of states from the GHZ-class that are deterministic dense codeable is higher than that of states from the W-class.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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