标题： 最大混沌链中的经典输运 显示英文标题

标题： Classical transport in a maximally chaotic chain

摘要： 一个用于耦合猫映射晶格的模型最近被引入。 这种新的特定耦合选择使得描述特别容易，并且可以精确确定如李雅普诺夫指数等非平凡量。 我们研究了这种链上局部扰动的动力学遍历性。 虽然扰动以弹道方式传播，但由于混沌导致相空间中的扩散传输，位置和动量分布表现出大的波动。 它提供了一个例子，其中扩散可以直接从微观混沌中推断出来。 显示英文摘要

摘要： A model for a lattice of coupled cat maps has been recently introduced. This new and specific choice of the coupling makes the description especially easy and nontrivial quantities as Lyapunov exponents determined exactly. We studied the ergodic property of the dynamics along such a chain for a local perturbation. While the perturbation spreads across a front growing ballistically, the position and momentum profiles show large fluctuations due to chaos leading to diffusive transport in the phase space. It provides an example where the diffusion can be directly inferred from the microscopic chaos.