arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.12534cond-mat.stat-mechphysics.class-ph
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Tsallis满足玻尔兹曼:有限理想气体的q指数及其热力学极限

Tsallis meets Boltzmann: q-index for a finite ideal gas and its thermodynamic limit

J. A. S. Lima, A. Deppman

摘要:

非加性Tsallis $q$ -统计已成功地应用于自然科学和其他知识分支的大量系统。然而,它的基础受到了一些作者的严厉批评,基于标准的添加剂玻尔兹曼-吉布斯方法,从而仍然是一个相当有争议的问题。为了澄清一些有争议的概念,本文解析地确定了具有有限个点粒子的理想气体的分布函数及其$q$指数。并导出了两粒子关联函数。关联度随着粒子数的增加而不断减小。理想的有限气体系统通常是相关的,当粒子数量增加时变得不那么相关,最后,当达到分子混沌状态时完全不相关。它也主张,这两种方法可以通过一个仔细的动力学光谱实验来面对。这里得出的分析结果表明,Tsallis q-统计可能会发挥更根本的物理作用比通常在文献中讨论。

英文摘要:

Nonadditive Tsallis $q$-statistics has successfully been applied for a plethora of systems in natural sciences and other branches of knowledge. Nevertheless, its foundations have been severely criticised by some authors based on the standard additive Boltzmann-Gibbs approach thereby remaining a quite controversial subject. In order to clarify some polemical concepts, the distribution function for an ideal gas with a finite number of point particles and its $q$-index are analytically determined. The two-particle correlation function is also derived. The degree of correlation diminishes continuously with the growth of the number of particles. The ideal finite gas system is usually correlated, becomes less correlated when the number of particles grows, and is finally, fully uncorrelated when the molecular chaos regime is reached. It is also advocated that both approaches can be confronted through a careful kinetic spectroscopic experiment. The analytical results derived here suggest that Tsallis q-statistics may play a physical role more fundamental than usually discussed in the literature.

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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