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We consider quantum nonlinear systems with dissipation described within the Caldeira-Leggett model, i.e., by a nonlocal action in the path integral for the density matrix. Approximate classical-like formulas are derived in order to evaluate…

统计力学 · 物理学 2007-05-23 A. Cuccoli , A. Fubini , A. Rossi , V. Tognetti , R. Vaia

A manifestly covariant relativistic statistical mechanics of the system of $N$ indistinguishable events with motion in space-time parametrized by an invariant ``historical time'' $\tau $ is considered. The relativistic mass distribution for…

高能物理 - 唯象学 · 物理学 2015-06-25 L. Burakovsky , L. P. Horwitz

Preferences of individuals are distributions of elements generated by generalized functions. Models of economic decision-making derived from such distributions are consistent with results of physiological experiments, and explain any…

神经元与认知 · 定量生物学 2012-01-20 Leonid A. Shapiro

We study the formulation of quantum statistical mechanics in noncommutative spaces. We construct microcanonical and canonical ensemble theory in noncommutative spaces. We consider for illustration some basic and important examples in the…

高能物理 - 理论 · 物理学 2009-06-10 S. A. Alavi

In a meta-analysis, it is important to specify a model that adequately describes the effect-size distribution of the underlying population of studies. The conventional normal fixed-effect and normal random-effects models assume a normal…

统计方法学 · 统计学 2013-10-21 George Karabatsos , Elizabeth Talbott , Stephen G. Walker

A problem of the equivalence of statistical ensembles is critically analyzed. It is shown, that although different probability distributions of statistical physics have the same behavior in the thermodynamic limit, there are physical…

高能物理 - 理论 · 物理学 2007-11-17 Ludwik Turko

Formalism based on equilibrium statistical thermodynamics is applied to communication networks of decision making individuals. It is shown that in statistical ensembles for choice models, properly defined disutility can play the same role…

统计力学 · 物理学 2007-05-23 Arkadiusz Majka , Wojciech Wislicki

Based on the properties of exponential distribution families we analyze the Fisher information of the Gibbs canonical ensemble to construct a new state function for simple systems with no mechanical work. Such a function possesses nice…

经典物理 · 物理学 2015-06-17 Amilcare Porporato

Dynamical equations describing physical systems at statistical equilibrium are commonly extended by mathematical tools called "thermostats". These tools are designed for sampling ensembles of statistical mechanics. We propose a dynamic…

数据分析、统计与概率 · 物理学 2018-01-17 A. Samoletov , B. Vasiev

In statistical mechanics, measuring the number of available states and their probabilities, and thus the system's entropy, enables the prediction of the macroscopic properties of a physical system at equilibrium. This predictive capacity…

统计力学 · 物理学 2023-12-14 Mathias Casiulis , Stefano Martiniani

We investigate the general property of the energy fluctuation for the canonical ensemble in Tsallis statistics and the ensemble equivalence. By taking the ideal gas and the non-interacting harmonic oscillators as examples, we show that,…

统计力学 · 物理学 2015-08-10 Liyan Liu , Jiulin Du

We present a view of the non-extensive thermodynamics based on general composition rules. A formal logarithm maps these rules to the addition, which can be used to generate stationary distributions by standard techniques. We review the most…

高能物理 - 唯象学 · 物理学 2009-11-13 T. S. Biro , G. Purcsel

The probability distribution function for an out of equilibrium system may sometimes be approximated by a physically motivated "trial" distribution. A particularly interesting case is when a driven system (e.g., active matter) is…

统计力学 · 物理学 2012-03-27 Carlos Perez-Espigares , Alejandro B. Kolton , Jorge Kurchan

We derive the continuous canonical distribution only by requiring the extensivity of the mean energy and the multiplicative probabilistic composition rule. The derivation is independent of the thermodynamic limit and moreover it does not…

统计力学 · 物理学 2016-08-31 Thomas Oikonomou , G. Baris Bagci

In statistical physics, the challenging combinatorial enumeration of the configurations of a system subject to hard constraints (microcanonical ensemble) is mapped to a mathematically easier calculation where the constraints are softened…

统计力学 · 物理学 2017-11-01 Tiziano Squartini , Diego Garlaschelli

Tsallis has proposed a generalisation of the standard entropy, which has since been applied to a variety of physical systems. In the canonical ensemble approach that is mostly used, average energy is given by an unnromalised, or normalised,…

统计力学 · 物理学 2009-10-31 S. Kalyana Rama

The predictive performance of any inferential model is critical to its practical success, but quantifying predictive performance is a subtle statistical problem. In this paper I show how the natural structure of any inferential problem…

统计方法学 · 统计学 2015-06-09 Michael Betancourt

We study the process of equilibration between two non-extensive subsystems in the framework of a particular non-extensive Boltzmann equation. We have found that even subsystems with different non-extensive properties achieve a common…

统计力学 · 物理学 2007-05-23 T. S. Biro , G. Purcsel

The paper deals with the generalization of both Boltzmann entropy and distribution in the light of most-probable interpretation of statistical equilibrium. The statistical analysis of the generalized entropy and distribution leads to some…

量子物理 · 物理学 2009-11-13 C. G. Chakrabarti , Indranil Chakrabarty

An expression is derived for the classical free energy difference between two configurations of a system, in terms of an ensemble of finite-time measurements of the work performed in parametrically switching from one configuration to the…

统计力学 · 物理学 2009-10-28 C. Jarzynski