High resolution superconducting single flux quantum comparator for sub kelvin temperatures
arXiv:cond-mat/0606761 · doi:10.1063/1.2357858
Abstract
A design of subkelvin single flux quantum (SFQ) circuits with reduced power dissipation and additional cooling of shunt resistors for superconducting qubit control circuits has been developed and characterized. We 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.
4 pages, 3 figures
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Cited by in corpus (6)
- Reading-out the state of a flux qubit by Josephson transmission line solitons
- A low-noise on-chip coherent microwave source
- RSFQ devices with selective dissipation for quantum information processing
- An adiabatic superconductor comparator with 46 nA sensitivity
- Single flux quantum circuits with damping based on dissipative transmission lines
- Verification of stable operation of rapid single flux quantum devices with selective dissipation