Journal article
Perturbed period-doubling bifurcation. II. Experiments on Josephson junctions
We present experimental results on the effect of periodic perturbations on a driven, dynamic system that is close to a period-doubling bifurcation. In the preceding article a scaling law for the change of stability of such a system was derived for the case where the perturbation frequency ωS is close to the resonances given by ωS/ωD=(1/2, 3) / 2 ,(5/2,..., where ωD is the driving frequency.
The theoretical prediction for the shift of the bifurcation point, ΔμB, which we use as a measure of the stabilization, is ΔμB∼AS2, where AS is the perturbation amplitude. We have investigated ΔμB as a function of the frequency and the amplitude of the perturbation signal ΔμB(ωS,AS) for a model system, the microwave-driven Josephson tunnel junction, and find reasonable agreement between the experimental results and the theory.
Language: | English |
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Year: | 1990 |
Pages: | 4189-4194 |
ISSN: | 10953795 , 01631829 , 1550235x , 10980121 and 24699950 |
Types: | Journal article |
DOI: | 10.1103/PhysRevB.41.4189 |
ORCIDs: | Hansen, Jørn Bindslev |