DocumentCode
1115198
Title
Sensitivity of the balanced Josephson-junction comparator
Author
Filippov, T.V. ; Kornev, V.K.
Author_Institution
Dept. of Phys., Moscow State Univ., USSR
Volume
27
Issue
2
fYear
1991
fDate
3/1/1991 12:00:00 AM
Firstpage
2452
Lastpage
2455
Abstract
The sensitivity of a balanced comparator composed of two overdamped Josephson junctions fed by single flux pulses is calculated, taking into account both thermal and quantum fluctuations. The results of the analysis are compared with those of recent experiments. Ultimate resolution of the balanced comparator with feasible junction parameters is estimated to be as high as ~50 pA/Hz1/2 at 4 K and ~10 pA/Hz1/2 at T →0 K. Performance limits of the device are compared with those of its single-junction counterpart
Keywords
Josephson effect; comparators (circuits); sensitivity analysis; superconducting junction devices; Josephson-junction; balanced comparator; overdamped junctions; quantum fluctuations; sensitivity; single flux pulses; thermal fluctuations; Artificial intelligence; Circuits; Current measurement; Fluctuations; Josephson effect; Josephson junctions; Parameter estimation; Physics; Potential energy; Smoothing methods;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.133715
Filename
133715
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