Interaction of two fluxons near a local inhomogeneity in a long Josephson junction

Journal Article · Mon Jun 01 00:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.12435· OSTI ID:7105310

Malomed, B A ^[1]; Nepomnyashchy, A A ^[2]

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1. Physics Laboratory I, Technical University of Denmark, DK-2800 Lyngby (Denmark) P. P. Shirshov Institute for Oceanology, U.S.S.R. Academy of Science, 23 Krasikov Street, Moscow 117259 (USSR)
2. Department of Mathematics, Technion Israel Institute of Technology, Haifa 32000 (Israel)

Collision of a free fluxon in a long dc-driven damped Josephson junction with a fluxon pinned by the microshort or microresistor is analyzed by means of perturbation theory. It is demonstrated that, in the case of like polarities of the fluxons, three different outcomes of the collision are possible: depinning, capture, and exchange. If the polarities are opposite, the possible outcomes are depinning, annihilation, and a quasielastic collision. The boundaries between the different regimes in the parametric space of the model are found.

• OSTI ID: 7105310
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 45:21; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANALYTICAL SOLUTION
EQUATIONS
FIELD EQUATIONS
FLUX QUANTIZATION
JOSEPHSON JUNCTIONS
JUNCTIONS
MAGNETIC FLUX
ONE-DIMENSIONAL CALCULATIONS
PERTURBATION THEORY
SINE-GORDON EQUATION
SUPERCONDUCTING JUNCTIONS