Nonlinear Sciences – Chaotic Dynamics
Scientific paper
2005-06-28
Phys. Rev. E 73, 036208 (2006)
Nonlinear Sciences
Chaotic Dynamics
28 pages, 13 figures
Scientific paper
10.1103/PhysRevE.73.036208
The dynamics of the localized region of the Lyapunov vector for the largest Lyapunov exponent is discussed in quasi-one-dimensional hard-disk systems at low density. We introduce a hopping rate to quantitatively describe the movement of the localized region of this Lyapunov vector, and show that it is a decreasing function of hopping distance, implying spatial correlation of the localized regions. This behavior is explained quantitatively by a brick accumulation model derived from hard-disk dynamics in the low density limit, in which hopping of the localized Lyapunov vector is represented as the movement of the highest brick position. We also give an analytical expression for the hopping rate, which is obtained us a sum of probability distributions for brick height configurations between two separated highest brick sites. The results of these simple models are in good agreement with the simulation results for hard-disk systems.
Morriss Gary P.
Taniguchi Tooru
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