Observation of soliton fusion in a Josephson array

Observation of soliton fusion in a Josephson array

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...

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Veröffentlicht in:Physical review letters 2006-01, Vol.96 (3), p.034103-034103, Article 034103
Hauptverfasser: Pfeiffer, J, Schuster, M, Abdumalikov, Jr, A A, Ustinov, A V
Format: Artikel
Sprache:eng
Schlagworte:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
MAGNETIC FLUX
RELATIVISTIC RANGE
SOLITONS
TOPOLOGY
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Zusammenfassung: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.96.034103