Turbulent diffusion for the radial twist map |
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Authors: | Tadatsugu Hatori Tetsuo Kamimura Yoshi H Ichikawa |
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Institution: | Institute of Plasma Physics, Nagoya University, Nagoya 464, Japan |
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Abstract: | An analytical tool is given to study the statistical properties of the radial twist map, Xn+1 = Xn + α(Yn+1) and Yn+1 = Yn + Af (Xn), with arbitrary rotation number α(Y) and arbitrary periodic force f(X). The case for which f(X) = sin 2 πX and with arbitrary α is treated in the region of large A. The turbulent diffusion coefficient D for the chaotic orbit relaxes as to , except for the case of the standard map, where the eventual value of D is different from . |
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