Underdamped long Josephson junction coupled to overdamped single-flux-quantum circuits

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.119423· OSTI ID:542529

Zhang, Y M; Borzenets, V; Kaplunenko, V K; Dubash, N B ^[1]

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1. Conductus Incorporated, Sunnyvale, California 94086 (United States)

We report a circuit that integrates an underdamped long Josephson junction with overdamped single-flux-quantum (SFQ) circuits. We confirm that the resonant soliton modes in the long junction are not affected by SFQ cells coupled to the junction, and demonstrate that the radiation frequency and linewidth of the soliton resonances can be measured with SFQ T-flip-flops. Our experimental results also show that a 4{pi} quantum mechanical phase leap at the end of the long junction, which is due to the reflection of a soliton, creates two single flux quanta propagating in the overdamped Josephson transmission line. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 542529
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 13 Vol. 71; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DIGITAL CIRCUITS
FLUX QUANTIZATION
INTEGRATED CIRCUITS
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
SOLITONS
SUPERCONDUCTING JUNCTIONS