NIFS-413

FULL TEXT (PDF, 1009 KB)


Author(s):

Y. Nomura, Y.H. Ichikawa and A.T. Filippov

Title:

Stochasticity in the Josephson Map

Date of publication:

Apr. 1996

Key words:

Josephson map, Standard map, Symmetry breaking

Abstract:

The Josephson map describes nonlinear dynamics of systems characterized by standard map with the uniform external bias superposed. The intricate structures of the phase space portrait of the Josephson map are examined on the basis of the tangent map associated with the Josephson map. Numerica1 observation of the stochastic dliffusion in the Josephson map is examined in comparison with the renormalized diffusion coefficient, calculated by the method of characteristic function. The global stochastisity of the Josephson map occurs at the values of far smaller stochastic parameter than the case of the standard map.

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