Mode locking in discrete soliton dynamics under ac forces

Journal Article · Tue Jul 01 04:00:00 EDT 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.56.87· OSTI ID:531796

Martinez, P J ^[1]; Falo, F; Mazo, J J; Floria, L M ^[2]; Sanchez, A ^[3]

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1. Departamento de Fisica Aplicada, Universidad de Zaragoza, 50009 Zaragoza (Spain)
2. Departamento de Fisica de la Materia Condensada, Universidad de Zaragoza, 50009 Zaragoza (Spain)
3. Grupo Interdisciplinar de Sistemas Complicados, Departamento de Matematicas, Universidad Carlos III de Madrid, 28911 Leganes (Spain)

We present here analytical arguments and numerical evidence for the existence of net directional motion of highly discrete sine-Gordon kinks under ac forces of zero average. We have also characterized the depinning of the oscillating kink under those circumstances, and analyzed the instability mechanisms of the phase-locked running solutions. Possible experimental relevance of this phenomenon in circular arrays of Josephson junctions is discussed. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 531796
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 1 Vol. 56; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DYNAMICS
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
MODE LOCKING
NUMERICAL ANALYSIS
NUMERICAL SOLUTION
SINE-GORDON EQUATION
SOLITONS