DocumentCode
995428
Title
Ultimate sensitivity of the dc SQUIDs using unshunted Josephson tunnel junctions
Author
Snigirev, O.V.
Author_Institution
Moscow State University, Moscow, U.S.S.R.
Volume
19
Issue
3
fYear
1983
fDate
5/1/1983 12:00:00 AM
Firstpage
584
Lastpage
586
Abstract
An analitical theory of dc SQUIDs using unshunted Josephson tunnel junctions is developed. An expression for the phase as a function of time has been found for the process of switching from zero-voltage state to gap-voltage state. Expressions are derived for the signal transfer function and for the voltage noise spectrum density in the SQUID. An ultimate sensitivity limit is found, and the comparison is performed between these devices and usual dc SQUIDs using shunted Josephson tunnel junctions.
Keywords
Josephson devices; Critical current; Frequency; Integrated circuit noise; Josephson junctions; Oscillators; Physics; Pulse circuits; SQUIDs; Transfer functions; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1983.1062494
Filename
1062494
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