期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.260603
关键词
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One of the most fundamental theorems in statistical mechanics is the Khinchin ergodic theorem, which links the ergodicity of a physical system with the irreversibility of the corresponding autocorrelation function. However, the Khinchin theorem cannot be successfully applied to processes with infinite second moment, in particular, to the relevant class of Levy flights. Here, we solve this challenging problem. Namely, using the recently developed measure of dependence called Levy correlation cascade, we derive a version of the Khinchin theorem for Levy flights. This result allows us to verify the Boltzmann hypothesis for systems displaying Levy-flight-type dynamics.
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