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arXiv 0709.4661cond-mat.stat-mech
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非广延统计力学与中心极限定理II -q-独立随机变量的卷积

Nonextensive statistical mechanics and central limit theorems II - Convolution of q-independent random variables

Silvio M. Duarte Queiros, Constantino Tsallis

摘要:

在这篇文章中,我们回顾了最近推广的中心极限定理的总和特别相关(或q独立)的变量,重点是q大于或等于1。具体地说,这种相关性将称为q-高斯的概率密度函数(在熵Sq最大化时出现)转变为概率空间中的吸引子。此外,我们还讨论了a-稳定Levy分布的q-推广,它对于这种特殊的关联也是稳定的。在这种情况下,我们验证了与吸引子的形式、关联和标度率相关的熵指数三元组的出现,类似于q-三元组,它将表征对初始条件的对初始条件的敏感性的熵指数、定态、和弛豫到反常系统中的定态。

英文摘要:

In this article we review recent generalisations of the central limit theorem for the sum of specially correlated (or q-independent) variables, focusing on q greater or equal than 1. Specifically, this kind of correlation turns the probability density function known as q-Gaussian, which emerges upon maximisation of the entropy Sq, into an attractor in probability space. Moreover, we also discuss a q-generalisation of a-stable Levy distributions which can as well be stable for this special kind of correlation.Within this context, we verify the emergence of a triplet of entropic indices which relate the form of the attractor, the correlation, and the scaling rate, similar to the q-triplet that connects the entropic indices characterising the sensitivity to initial conditions, the stationary state, and relaxation to the stationary state in anomalous systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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