Interaction of a fluxon with an inductance step in a long Josephson junction

Yuri S. Kivshar; Boris A. Malomed

doi:10.1063/1.343084

Interaction of a fluxon with an inductance step in a long Josephson junction

Yuri S. Kivshar^*, Boris A. Malomed

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Within the framework of the sine-Gordon model of a long Josephson junction, we have calculated a threshold value of bias current density which admits capture of a fluxon by an effective potential well generated by a step of inductance in the junction. Along with a kinematic approximation, a nontrivial dynamical correction is found. We have also calculated analytically energy emitted by a fast fluxon moving past the step.

Original language	English
Pages (from-to)	879-881
Number of pages	3
Journal	Journal of Applied Physics
Volume	65
Issue number	2
DOIs	https://doi.org/10.1063/1.343084
State	Published - 1989
Externally published	Yes

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abstract = "Within the framework of the sine-Gordon model of a long Josephson junction, we have calculated a threshold value of bias current density which admits capture of a fluxon by an effective potential well generated by a step of inductance in the junction. Along with a kinematic approximation, a nontrivial dynamical correction is found. We have also calculated analytically energy emitted by a fast fluxon moving past the step.",

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AB - Within the framework of the sine-Gordon model of a long Josephson junction, we have calculated a threshold value of bias current density which admits capture of a fluxon by an effective potential well generated by a step of inductance in the junction. Along with a kinematic approximation, a nontrivial dynamical correction is found. We have also calculated analytically energy emitted by a fast fluxon moving past the step.

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Interaction of a fluxon with an inductance step in a long Josephson junction

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