Time resolution of Josephson balanced comparators with shunt resistance

ASKERBEYLİ İ.

Automatic Control and Computer Sciences, vol.48, no.4, pp.239-242, 2014 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.3103/s0146411614040026
  • Journal Name: Automatic Control and Computer Sciences
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.239-242
  • Keywords: balanced comparator, Josephson junction, time resolution, transient response
  • Ankara University Affiliated: Yes

Abstract

© 2014 Allerton Press, Inc.In this paper, the time resolution of Josephson balanced comparators with shunt resistance is theoretically estimated. A general expression is obtained for the time resolution of the linearly growing strobe pulse. It is shown that the time resolution deteriorates by a factor of (1+2R N/R S8/15(R Sis the shunt resistance, and R Nis the normal resistance of the Josephson junction), while shunting improves the sensitivity of balanced comparators, as is proven in [20]. Estimates show that it is possible to reach subpicosec time resolution for balanced Josephson comparators with shunt resistance.