Tunable oscillator using pulsons on large-area lossy Josephson junctions | Zendy

P. L. Christiansen | Zendy; P. S. Lomdahl | Zendy; Norman J. Zabusky | Zendy

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Tunable oscillator using pulsons on large-area lossy Josephson junctions

Author(s) -

P. L. Christiansen,

P. S. Lomdahl,

Norman J. Zabusky

Publication year - 1981

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.92651

Subject(s) - josephson effect , lossy compression , condensed matter physics , pi josephson junction , resonator , biasing , physics , current (fluid) , negative resistance , superconductivity , optoelectronics , voltage , quantum mechanics , artificial intelligence , computer science , thermodynamics

A tunable resonator in the gigahertz‐range using circular sine‐Gordon fluxons or pulsons on a lossy large‐area Josephson junction with a circular impurity in the Josephson current density is proposed. To obtain steady tunable oscillations in a lossy medium, one must supply energy (’’negative’’ resistance). We propose to control the constant bias current with an autonomous pulson velocity‐sensitive switch. One possibility for fine tuning the oscillations is to vary the strength of the Josephson impurity current.

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