在量子信息传输过程中,环境的作用会导致退相干与退纠缠.利用不同类型量子比特的优点,构成杂化量子比特系统是克服退相干效应、实现量子信息传输的一个有效方案.将耦合量子比特之间信息交换过程中存在的能量损耗(量子比特间的交换衰减),与外部环境的退相干效应有机结合起来,可以实现无退纠缠效应的量子信息传输.给出了实现无退纠缠效应信息传输,交换衰减率与退相干时间匹配的约束关系.
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