TY - JOUR

T1 - Fluxons interactions in a Josephson junction with a phase-shift

AU - Susanto, H.

AU - Espínola-Rocha, J. A.

PY - 2009/3/30

Y1 - 2009/3/30

N2 - We consider a long Josephson junction with a discontinuity point characterized by a gauge phase-shift. The system is described by a modified sine-Gordon equation. We study, in particular, the interactions between a fluxon and a fractional fluxon. A perturbation theory is developed in the small phase-shift limit to understand the characteristics of the interaction. Finally, numerical computations of the threshold bias current and the threshold velocity for a fluxon running over a fractional fluxon are presented.

AB - We consider a long Josephson junction with a discontinuity point characterized by a gauge phase-shift. The system is described by a modified sine-Gordon equation. We study, in particular, the interactions between a fluxon and a fractional fluxon. A perturbation theory is developed in the small phase-shift limit to understand the characteristics of the interaction. Finally, numerical computations of the threshold bias current and the threshold velocity for a fluxon running over a fractional fluxon are presented.

KW - Fluxon

KW - Kink

KW - Phase-shift

KW - Sine-Gordon equations

UR - http://www.scopus.com/inward/record.url?scp=61349181862&partnerID=8YFLogxK

U2 - 10.1016/j.physleta.2009.02.014

DO - 10.1016/j.physleta.2009.02.014

M3 - Article

AN - SCOPUS:61349181862

SN - 0375-9601

VL - 373

SP - 1387

EP - 1391

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 15

ER -