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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 | |
| 引用本文： | 陈劲丹,于扬. 利用超导量子电路中的宏观量子相干性测量弱磁场[J]. 南京邮电大学学报(自然科学版), 2011, 31(2): 74-77 |
| 作者姓名： | 陈劲丹 于扬 |
| 作者单位： | 南京大学国家固体微结构实验室,江苏南京,210093 |
| 基金项目： | 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 |
| 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. |
| 关 键 词： | 宏观量子相干性 Rabi振荡 磁通量子比特 |
Detect Weak Magnetic Field with Macroscopic Quantum Coherence in Superconducting Quantum Circuits |
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| CHEN Jin-dan,YU Yang. Detect Weak Magnetic Field with Macroscopic Quantum Coherence in Superconducting Quantum Circuits[J]. JJournal of Nanjing University of Posts and Telecommunications, 2011, 31(2): 74-77 | |
| Authors: | CHEN Jin-dan YU Yang |
| Affiliation: | CHEN Jin-dan,YU Yang(National Laboratory of Solid State Microstructurctures,Nanjing University,Nanjing 210093,China) |
| Abstract: | 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. |
| Keywords: | macroscopic quantum coherence Rabi oscillation flux qubit |
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