Abstract
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. © 2006 American Institute of Physics.
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CITATION STYLE
Savin, A. M., Pekola, J. P., Holmqvist, T., Hassel, J., Grönberg, L., Helistö, P., & Kidiyarova-Shevchenko, A. (2006). High-resolution superconducting single-flux quantum comparator for sub-Kelvin temperatures. Applied Physics Letters, 89(13). https://doi.org/10.1063/1.2357858
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