Tommy Holmqvist
Research engineer
High-resolution superconducting single-flux quantum comparator for sub-Kelvin temperatures
Author
Summary, in English
A design of sub-Kelvin single-flux quantum (SFQ) circuits with reduced power dissipation and additional cooling of shunt resistors has been developed and characterized. The authors demonstrate operation of SFQ comparators with current resolution of 40 nA at 2 GHz sampling rate. Due to improved cooling the electron temperature in shunt resistors of a SFQ comparator is below 50 mK when the bath temperature is about 30 mK.
Publishing year
2006
Language
English
Publication/Series
Applied Physics Letters
Volume
89
Issue
13
Document type
Journal article
Publisher
American Institute of Physics (AIP)
Status
Published
ISBN/ISSN/Other
- ISSN: 0003-6951