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利用超导量子电路中的宏观量子相干性测量弱磁场

Detect Weak Magnetic Field with Macroscopic Quantum Coherence in Superconducting Quantum Circuits
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摘要 超导量子电路可以被等效地看作人造原子,其内部能级结构随外磁场而变化。这里根据这些超导量子电路中的宏观量子相干性,设计了一种新型的磁强计。这种磁强计不仅体积小,而且具有低耗散和高灵敏度的优点。正因为此,它在读取诸如超导磁通量子比特等量子纳米设备方面,具有很大的应用前景。 Superconducting quantum circuits can be considered as artificial atoms with internal energy levels depending on the environmental magnetic field. We have proposed a new type of magnetometer that is based on the macroscopic quantum coherence in superconducting quantum circuits. This magnetometer possesses the main advantages of small size,low dissipation, and high sensitivity. Therefore, it is a promising device to read out the quantum nano-devices, such as superconducting flux qubits.
作者 陈劲丹 于扬
出处 《南京邮电大学学报(自然科学版)》 2011年第2期74-77,共4页 Journal of Nanjing University of Posts and Telecommunications:Natural Science Edition
基金 国家重大科学研究计划(2011CB922104 2011CBA00205) 国家自然科学基金(91021003 10725415) 江苏省自然科学基金(BK2010012)资助项目
关键词 宏观量子相干性 RABI振荡 磁通量子比特 macroscopic quantum coherence Rabi oscillation flux qubit
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参考文献13

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