Observation of a fluxon-antifluxon collision in a Josephson transmission line

Azusa Matsuda

doi:10.1103/PhysRevB.34.3127

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Observation of a fluxon-antifluxon collision in a Josephson transmission line

Azusa Matsuda

DOI 10.1103/PhysRevB.34.3127 · Physical Review B

T1

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Abstract

The behavior of a fluxon-antifluxon collision in a Josephson transmission line is experimentally investigated, with use of a direct measurement system for a fluxon waveform. The experiment shows an increase in propagation delay time following a collision. This result can be qualitatively explained as the effect of dissipative perturbation by using a numerical simulation and perturbation theory, where the origin of the increase in the delay time is explained in terms of a power balance equation. The effect of nonuniformity in the transmission line parameters on a collision is evaluated to account for the observed spatial distribution of delay-time increase. Analysis with a δ-function-like defect shows that there is evidence of such a defect in the experimental data.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown