نتایج جستجو برای: tsallis statistical mechanics

تعداد نتایج: 502719  

2000
Christian Beck

We generalize Hagedorn’s statistical theory of momentum spectra of particles produced in high-energy collisions using Tsallis’ formalism of non-extensive statistical mechanics. Suitable non-extensive grand canonical partition functions are introduced for both fermions and bosons. Average occupation numbers and moments of transverse momenta are evaluated in an analytic way. We analyse the energy...

2004
Mark Fleischer

This article extends results described in a recent article detailing a structural scale invariance property of the simulated annealing (SA) algorithm. These extensions are based on generalizations of the SA algorithm based on Tsallis statistics and a non-extensive form of entropy. These scale invariance properties show how arbitrary aggregations of energy levels retain certain mathematical char...

2007
Shigeru Furuichi

We review the properties of the generalized entropies in our previous papers in the following way. (1)A generalized Fannes’ inequality is shown by the axiomatically characterized Tsallis entropy. (2)The maximum entropy principles in nonextensive statistical physics are revisited as an application of the Tsallis relative entropy defined for the nonnegative matrices in the framework of matrix ana...

2002
Israel Esquef Marcelo Portes de Albuquerque Márcio Portes de Albuquerque

In image processing, one of the most efficient techniques for image segmentation is entropy-based thresholding. In this work it was applied a generalized entropy formalism that represents a recent development in statistical mechanics. We propose, for the first time, an image thresholding method using a nonextensive entropy regarding the presence of nonadditive information content in some image ...

Journal: :Entropy 2013
Arak M. Mathai Hans J. Haubold

An entropy for the scalar variable case, parallel to Havrda-Charvat entropy, was introduced by the first author, and the properties and its connection to Tsallis non-extensive statistical mechanics and the Mathai pathway model were examined by the authors in previous papers. In the current paper, we extend the entropy to cover the scalar case, multivariable case, and matrix variate case. Then, ...

Journal: :Physica D: Nonlinear Phenomena 2022

Although generalized ensembles have now been in use statistical mechanics for decades, including frameworks such as Tsallis' nonextensive statistics and superstatistics, a classification of these outlining the boundaries validity different families models, is still lacking. In this work, proposed terms supercanonical subcanonical ensembles, according to newly defined parameter, inverse temperat...

Journal: :EPL 2022

In this article, we investigate the thermodynamic stability of FRW universe for two examples, Tsallis entropy and loop quantum gravity, by considering non-extensive statistical mechanics. The heat capacity, free energy pressure are obtained. For model, obtained constraint $\beta$, namely, $1/2 < \beta 2$. a thermal equilibrium must be less than zero. We suggest that reason accelerated expansion...

2008
Shigeru Furuichi SHIGERU FURUICHI

Maximum entropy principles in nonextensive statistical physics are revisited as an application of the Tsallis relative entropy defined for non-negative matrices in the framework of matrix analysis. In addition, some matrix trace inequalities related to the Tsallis relative entropy are studied.

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