Volume 83, Number 1, July 2008
|Number of page(s)||6|
|Published online||12 June 2008|
Josephson junction arrays with negative group velocity: Propagation of envelope solitary waves
Technische Universität Darmstadt, Institut für Theorie elektromagnetischer Felder, TEMF - Schloßgartenstr. 8, D-64289 Darmstadt, Germany, EU
Accepted: 14 May 2008
The dynamics of small-amplitude solitons in one-dimensional arrays of short Josephson junctions with negative group velocity is reported. Analytical expression of the solitons are derived. Dynamics of bright and dark solitons is numerically studied. Very high soliton velocities are observed. The effect of the modulation instability on the envelope shape is analyzed and the effect of loss is discussed.
PACS: 05.45.Yv – Solitons / 74.81.Fa – Josephson junction arrays and wire networks / 05.45.-a – Nonlinear dynamics and chaos
© EPLA, 2008
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