N-qubit quantum teleportation, information splitting and superdense coding through the composite GHZ–Bell channel
N-qubit quantum teleportation, information splitting and superdense coding through the composite GHZ–Bell channel
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DOI：
10.1007/s11128-011-0270-x
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发表时间：
2011-05
影响因子：
2.5
通讯作者：
Debashis Saha;P. Panigrahi
中科院分区：
文献类型：
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作者：
Debashis Saha;P. Panigrahi
介绍了一种由GHZ和Bell对组成的通用奇量子比特纠缠系统，并阐述了它在量子隐形传态、信息分裂和超密编码中的应用。在五量子比特系统上演示了超密集编码协议后，我们证明了通过该信道发送“N+ 1”量子比特可以发送“2N+ 1”个经典比特。研究发现，五量子比特系统也非常适合任意一量子比特和二量子比特的隐形传态和量子信息分裂（QIS）。对于单量子比特量子信息系统，有三种不同的协议是可行的，而对于双量子比特量子信息系统，只有一种协议是可行的。然后说明了任意量子比特态隐形传态和量子信息分裂的协议。
We introduce a general odd qubit entangled system composed of GHZ and Bell pairs and explicate its usefulness for quantum teleportation, information splitting and superdense coding. After demonstrating the superdense coding protocol on the five qubit system, we prove that ‘2N+ 1’ classical bits can be sent by sending ‘N+ 1’ quantum bits using this channel. It is found that the five-qubit system is also ideal for arbitrary one qubit and two qubit teleportation and quantum information splitting (QIS). For the single qubit QIS, three different protocols are feasible, whereas for the two qubit QIS, only one protocol exists. Protocols for the arbitraryN-qubit state teleportation and quantum information splitting are then illustrated.