Sa. Hattel et al., ANALYTICAL AND NUMERICAL-ANALYSIS OF FLUXON MOTION IN JOSEPHSON-JUNCTIONS - MICROSCOPIC THEORY, Physics letters. A, 178(1-2), 1993, pp. 150-155
The equilibrium velocity of a 2pi-kink in a long Josephson junction is
calculated analytically for low bias currents using the expression fo
r the tunnel current from microscopic theory. The result is compared t
o the results of numerical simulations and excellent agreement is foun
d, but the dynamics is very sensitive to the detailed form of the comp
lex current amplitudes.