Effect of memory and dynamical chaos in long Josephson junctions

Details Effect of memory and dynamical chaos in long Josephson junctions Effect of memory and dynamical chaos in long Josephson junctions

2000-03-27

arxiv.org/abs/cond-mat/0003421v1

Phys. Rev. B 51 (1995) 737-741

Physics

Condensed Matter

Superconductivity

9 pages, 10 Postscript figures

Scientific paper

A long Josephson junction in a constant external magnetic field and in the presence of a dc bias current is investigated. It is shown that the system, simulated by the sine-Gorgon equation, "remembers" a rapidly damping initial perturbation and final asymptotic states are determined exactly with this perturbation. Numerical solving of the boundary sine-Gordon problem and calculations of Lyapunov indices show that this system has a memory even when it is in a state of dynamical chaos, i.e., dynamical chaos does not destroy initial information having a character of rapidly damping perturbation.

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