Title :
Josephson voltage standard by controlling chaos
Author :
Abraham, E. ; Atkin, I.L. ; Wilson, A.
Author_Institution :
Dept. of Phys., Heriot-Watt Univ., Edinburgh, UK
fDate :
6/1/1999 12:00:00 AM
Abstract :
We apply control of chaos to the rf-biased Josephson junction used in the voltage standard. We show that the technique works successfully, even in the presence of thermal noise. Restrictions on nonlinearity no longer apply and phase locking can be ensured.
Keywords :
Josephson effect; chaos; measurement standards; superconducting device noise; superconducting junction devices; thermal noise; voltage measurement; Josephson voltage standard; chaos; nonlinearity; phase locking; rf-biased Josephson junction; thermal noise; Chaos; Control systems; Feedback loop; Feeds; Josephson junctions; Motion control; Orbits; Physics; Spatial coherence; Voltage control;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
