Open AccessCIRCULARLY SYMMETRIC SOLITON SOLUTION IN AN ANNULAR JOSEPHSON JUNCTION
Author(s) -
Qiang-Hua Wang,
Wei Wang,
X.X. Yao
Publication year - 1991
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.40.1999
Subject(s) - physics , sine gordon equation , josephson effect , soliton , dissipation , perturbation theory (quantum mechanics) , sine , perturbation (astronomy) , classical mechanics , quantum mechanics , superconductivity , nonlinear system , mathematics , geometry
We have analysed the circularly symmetric sine-Gordon equation with bias and dissipation by means of a simplified perturbation theory. Analytic solutions that describe the dynamical behaviour of a quasisoliton trapped within the annular junction have been obtained. Between the results of our theory and numerical simulation, there exists a good agreement for the first zero field step (ZFS) in the l-V characteristic. A brief discussion of our results is also presented.