Pfeiffer J, Schuster M, Abdumalikov AA, Ustinov AV. Observation of soliton fusion in a Josephson array.
PHYSICAL REVIEW LETTERS 2006;
96:034103. [PMID:
16486706 DOI:
10.1103/physrevlett.96.034103]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2005] [Indexed: 05/06/2023]
Abstract
The behavior of topological solitons in a parallel array of a Josephson junction is studied experimentally. We observe the fusion of two relativistic solitons of the same polarity into a single soliton. The soliton carries two quanta of magnetic flux and, most strikingly, travels 18% faster than an ordinary soliton under the same driving force. We also find a variety of bunched states composed of solitons of the same polarity, moving with fixed separation.
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