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Soliton trapping in a periodic potential: experiment

Ustinov, Alexey V.; Malomed, B.A.; Thyssen, N.

The dynamics of a single soliton in a ring-shaped Josephson junction is studied experimentally. An externally applied magnetic field H forms a sinusoidal potential relief for the soliton in the ring. The effects of soliton pinning and trapping by the potential are observed and measured as a function of the potential height and losses in the junction. An analogy between the soliton dynamics and motion of a particle in a wash-board potential is clearly demonstrated. The experimentally found trapping threshold for small H fairly well agrees with the theoretical prediction using the dissipation-based power balance. With increasing H, the observed large discrepancy between theory and experiment is attributed to additional soliton energy losses due to radiation.

DOI: 10.1016/S0375-9601(97)00461-1
Zitationen: 21
Web of Science
Zitationen: 23
Zitationen: 21
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Philosophie (PHIL)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 1997
Sprache Englisch
Identifikator ISSN: 0375-9601, 1873-2429
KITopen-ID: 1000075686
Erschienen in Physics letters / A
Verlag North-Holland
Band 233
Heft 3
Seiten 239–244
Nachgewiesen in Web of Science
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