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Liquid Nuclear Magnetic Resonance Implementation of Quantum Computation in Subspace 总被引:1,自引:0,他引:1 下载免费PDF全文
Based on the logical labelling method, we prepare an effective pure state in a subsystem of a three spin system via liquid nuclear magnetic resonance technique. Then with this subspace effective pure state we implement the Deutsch-Jozsa algorithm. The tomography for the subspace effective pure state and the corresponding spectrum of the output for the Deutsch-Jozsa algorithm agree with theoretical predictions, which shows that we have successfully implemented the Deutsch-Jozsa algorithm in a subsystem of a nuclear spin system and demonstrated a subspace quantum computation. 相似文献
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关于声速测量实验的讨论 总被引:1,自引:0,他引:1
对声速测量实验现象提出新的理解途径,认为声压是发射和接收端之间声波无限次反射叠加的结果.在考虑空气中传播损耗,换能器界面反射能损及相位半波损失的情况下,给出接收端测量的声压振动和声波位移振动两者关系,最后得出接收端声压信号随发射、接收端间距变化的具体关系,与具体实验现象符合. 相似文献
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