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Periodical Oscillations of Supercurrent Fluctuation in Mesoscopic Josephson Junctions in Quantized Electromagnetic Fields |
KUANG Le-man1,2;WANG Yi-wen1;GE Mo-lin1 |
1Theoretical Physics Division, Nankai Institute of Mathemutics, Tianjin 300071
2Department of Physics, Hunun Normal University, Changsha 410081
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Cite this article: |
KUANG Le-man, WANG Yi-wen, GE Mo-lin 1996 Chin. Phys. Lett. 13 359-361 |
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Abstract Supercurrent fluctuation of a mesoscopic Josephson junction ( MJJ ) in the pre-sence of a dc static voltage and a time-varying quantized electromagnetic field ( QEMF) is investigated. It is shown that the fluctuation of supercurrent in the MJJ exhibits periodical oscillations with a periodicity which depends upon the rate of the classical static external voltage and the frequency of the QEMF.
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Keywords:
42.50.Lc
74.50.+r
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Published: 01 May 1996
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PACS: |
42.50.Lc
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(Quantum fluctuations, quantum noise, and quantum jumps)
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74.50.+r
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(Tunneling phenomena; Josephson effects)
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