| 超导弱连接中的Josephson电流在一个磁通量子内的振荡(Ⅰ)——Josephson结 |
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| 引用本文： | 张裕恒,陈赓华.超导弱连接中的Josephson电流在一个磁通量子内的振荡(Ⅰ)——Josephson结[J].物理学报,1982,31(6):749-757. |
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| 作者姓名： | 张裕恒 陈赓华 |
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| 作者单位： | (1)中国科学技术大学物理系; (2)中国科学技术大学物理系,研究生 |
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| 摘 要： | 本文指出如果Josephson结处在Q值足够高的谐振腔内,当Josephson频率ω=(2eV0)/h与谐振腔的本征频率ωr发生谐振时,谐振的电磁场对Josephson结自身的反馈作用将导致超流电流在一个磁通量子内随磁场的小周期振荡。
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| 收稿时间： | 1981-08-25 |
THE SUPERCURRENT OSCILLATIONS WITHIN ONE FLUX QUANTUM PERIOD φ0 FOR WEAK LINKS (I)——THE JOSEPHSON JUNCTION |
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| ZHANG YU-HENG and CHENG GENG-HUA.THE SUPERCURRENT OSCILLATIONS WITHIN ONE FLUX QUANTUM PERIOD φ0 FOR WEAK LINKS (I)——THE JOSEPHSON JUNCTION[J].Acta Physica Sinica,1982,31(6):749-757. |
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| Authors: | ZHANG YU-HENG and CHENG GENG-HUA |
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| Abstract: | It is pointed out that by placing a Josephson tunnel junction in a cavity, which resonates with the supercurrent of the junction, i.e., when the Josephson frequency ω=2eV0/h is equal to one of the cavity frequencies ωr, and the cavity Q-value is sufficiently high, then the oscillating electric-magnetic field excited by the junction reacts on the junction itself and produces a supercurrent oscillation with the applied external flux. Its period can be much smaller than the magnetic flux quantum period φ0. |
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