THE SUPERCURRENT OSCILLATIONS WITHIN ONE FLUX QUANTUM PERIOD φ0 FOR WEAK LINKS (I)——THE JOSEPHSON JUNCTION | Zendy

ZHANG YU-HENG | Zendy; CHENG GENG-HUA | Zendy

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THE SUPERCURRENT OSCILLATIONS WITHIN ONE FLUX QUANTUM PERIOD φ0 FOR WEAK LINKS (I)——THE JOSEPHSON JUNCTION

Author(s) -

ZHANG YU-HENG,

CHENG GENG-HUA

Publication year - 1982

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.31.749

Subject(s) - supercurrent , josephson effect , condensed matter physics , physics , pi josephson junction , magnetic flux quantum , magnetic flux , superconducting tunnel junction , oscillation (cell signaling) , magnetic field , period (music) , flux (metallurgy) , quantum , superconductivity , quantum mechanics , materials science , chemistry , biochemistry , metallurgy , acoustics

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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