Authors: HongZi Fu XiuLao Tian Yang Hu
Publish Date: 2014/01/11
Volume: 53, Issue: 6, Pages: 1840-1847
Abstract
Based on tensor representation and Bell basis measurement in bidirectional quantum teleportation a criterion that can be used to judge whether a fourqubit quantum state can be regarded as quantum channel or not in bidirectional teleportation is suggested and a theoretical scheme of bidirectional teleportation via fourqubit state as the quantum channel is proposed In accordance with this criterion we give a general method of selecting quantum channel in bidirectional teleportation which is determined by the channel parameter matrix R in the Bell basis measurement This general method provide a theoretical basis for quantum channel selection in bidirectional quantum teleportation experimentsWe thank Prof XiaoQiang Xi for helpful discussions This work was supported by NSFC 11205121 10974247 11175248 the NSF of Shaanxi Province 2010JM1011 and the Scientific Research Program of Education Department of Shaanxi Provincial Government 12JK0992 12JK0986
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