Spatiotemporal effects in long rf-biased Josephson junctions: Chaotic transitions and intermittencies between dynamical attractors

Journal Article · Fri Sep 15 04:00:00 EDT 1989 · Physical Review (Section) A: General Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevA.40.3371· OSTI ID:5649026

Guerrero, L E; Octavio, M ^[1]

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1. Centro de Fisica, Instituto Venezolano de Investigaciones Cientificas, Apartado 21827, Caracas 1020 A, Venezuela (VE) Facultad de Ciencias, Universidad Central de Venezuela, Apartado 21201, Caracas 1020 A, Venezuela

We present an extensive numerical study of a long rf-biased Josephson junction in the presence of an applied magnetic field. We show the great complexity of the system and clarify some of the diverse spatiotemporal relationships that exist. At low values of the rf amplitude the spatial constraint succeeds in exciting an oscillating and localized pattern of solitonlike character. The dynamical response of this excitation as the forcing amplitude is increased allows us to observe three distinct intermittent phenomena: intermittency induced by interior crises, spatiotemporal intermittency between strange attractors, and tangentlike spatiotemporal intermittency. We also analyze at higher rf-bias amplitude a transition to a regime consisting of traveling waves with the spontaneous development of dc voltage which we interpret as being due to spatiotemporal chaos.

• OSTI ID: 5649026
• Journal Information: Physical Review (Section) A: General Physics; (USA), Journal Name: Physical Review (Section) A: General Physics; (USA) Vol. 40:6; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
FUNCTIONS
JOSEPHSON JUNCTIONS
JUNCTIONS
MAGNETIC FIELDS
OSCILLATIONS
QUASI PARTICLES
RESPONSE FUNCTIONS
RF SYSTEMS
SOLITONS
SUPERCONDUCTING JUNCTIONS