Scattering of quasi-one-dimensional solitons on impurities in large Josephson junctions

Abstract

Fluxon transmission through impurities of different shape in a quasi-one-dimensional long Josephson junction is investigated. The junction width is significantly less than its length but, at the same time, is of the order of the Josephson penetration length ${\lambda }_J$ or exceeds it. The retrapping current on the impurities of the point, line and rectangular shape is computed as a function of the junction width both numerically and analytically. Good agreement between the analytic formulae and the numerical simulation results for the intermediate (several ${\lambda }_J$) junction width is observed.

4 Figures, submitted to Phys. Lett. A

References in corpus (6)

• Reading-out the state of a flux qubit by Josephson transmission line solitons
• Quantum tunneling of semifluxons
• Scattering of topological solitons on holes and barriers
• Shape waves in 2D Josephson junctions: exact solutions and time dilation
• The window Josephson junction: a coupled linear nonlinear system
• Scattering of Topological Solitons on Barriers and Holes in Two λϕ^4 Models

Cited by in corpus (1)

• Radiation emission due to fluxon scattering on inhomogeneity in large two-dimensional Josephson junction