Reading out the state of a flux qubit by Josephson transmission line solitons

Reading out the state of a flux qubit by Josephson transmission line solitons
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通过约瑟夫森传输线孤子读出通量量子位的状态

DOI：
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发表时间：
2006
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通讯作者：
A. Kidiyarova
A. Kidiyarova
中科院分区：
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文献类型：
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作者：
A. Fedorov;A. Shnirman;G. Schon;A. Kidiyarova

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描述了在标准快速单通量量子技术中，约瑟夫森传输线(JTL)中的孤子对约瑟夫森通量量子比特态的读出过程。我们考虑了关于量子比特状态的信息存储在孤子的时延中的情况。我们分析了耗散欠阻尼JTL，考虑了它们的抖动，并给出了相关实验参数的测量时间和测量效率的估计。
We describe the readout process of the state of a Josephson flux qubit via solitons in Josephson transmission lines (JTLs) as they are in use in the standard rapid single flux quantum technology. We consider the situation where the information about the state of the qubit is stored in the time delay of the soliton. We analyze dissipative underdamped JTLs, take into account their jitter, and provide estimates of the measuring time and efficiency of the measurement for relevant experimental parameters.