How complex is quantum motion?
How complex is quantum motion?
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DOI：
10.1103/physreve.79.025201
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发表时间：
2009-02-01
影响因子：
2.4
通讯作者：
Casati, Giulio
中科院分区：
文献类型：
--
作者：
Benenti, Giuliano;Casati, Giulio
在经典力学中，动力系统的复杂性以局部指数不稳定性的速率为特征，局部指数不稳定性会消除初始条件的记忆并导致实际的不可逆性。与此形成鲜明对比的是，量子力学似乎表现出对初始状态的强烈记忆。在这里，我们引入量子系统的复杂性概念，并将其与其稳定性和可逆性特性联系起来。
In classical mechanics the complexity of a dynamical system is characterized by the rate of local exponential instability which effaces the memory of initial conditions and leads to practical irreversibility. In striking contrast, quantum mechanics appears to exhibit strong memory of the initial state. Here we introduce a notion of complexity for a quantum system and relate it to its stability and reversibility properties.