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Hamilton-Jacobi Formulation of KS Entropy for Classical and Quantum Dynamics

M. Hossein Partovi
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Abstract

A Hamilton-Jacobi formulation of the Lyapunov spectrum and KS entropy is developed. It is numerically efficient and reveals a close relation between the KS invariant and the classical action. This formulation is extended to the quantum domain using the Madelung-Bohm orbits associated with the Schroedinger equation. The resulting quantum KS invariant for a given orbit equals the mean decay rate of the probability density along the orbit, while its ensemble average measures the mean growth rate of configuration-space information for the quantum system.

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M. Hossein Partovi. 2001-07-16. Hamilton-Jacobi Formulation of KS Entropy for Classical and Quantum Dynamics. https://doi.org/10.1103/physrevlett.89.144101

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