Phys. Rev. Lett. 69, 1815–1818 (1992)Dynamics of sine-Gordon solitons in the annular Josephson junctionReceived 22 June 1992; published in the issue dated 21 September 1992 The annular Josephson junction allows for the study of undisturbed soliton (fluxon) motion in the absence of collisions. With new experimental methods and design we have realized for the first time a fully controllable way of introducing individual fluxons or antifluxons into such a system. This has allowed us to study multisoliton behavior and to make a comparison with existing soliton-chain perturbation theory. An unforeseen crossover in the dynamical behavior at high velocities is tentatively interpreted in terms of soliton bunching. © 1992 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.69.1815
DOI:
10.1103/PhysRevLett.69.1815
PACS:
74.50.+r, 03.40.Kf, 74.60.Ge
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