Zobrazeno 1 - 10
of 243
pro vyhledávání: '"Nivanen, L."'
Il is argued that the generalisation of the mechanical principles to other variables than localisation, velocity and momentum leads to the laws of generalized dynamics under the condition of continuous and derivable space time. However, when the frac
Externí odkaz:
http://arxiv.org/abs/0907.4262
In this paper, we give a new method for proving the Lesche stability of several functionals(Incomplete entropy, Tsallis entropy, \kappa - entropy, Quantum-Group entropy). We prove also that the Incomplete q - expectation value and Renyi entropy for (
Externí odkaz:
http://arxiv.org/abs/0810.3860
Publikováno v:
International Journal of Modern Physics B, 24(2010)3461-3468
In this work, we consider a recently proposed entropy S (called varentropy) defined by a variational relationship dI=beta*(d-) as a measure of uncertainty of random variable x. By definition, varentropy underlies a generalized virtual work pri
Externí odkaz:
http://arxiv.org/abs/0803.3110
Autor:
Lawani, A., Meur, J. Le, Tayurskii, D., Kaabouchi, A. El, Nivanen, L., Minisini, B., Tsobnang, F., Pezeril, M., Méhauté, A. Le, Wang, Q. A.
Publikováno v:
Journal of Low Temperature Physics 150 (2008) 605-611
In the Bose-Einstein condensation of interacting atoms or molecules such as 87Rb, 23Na and 7Li, the theoretical understanding of the transition temperature is not always obvious due to the interactions or zero point energy which cannot be exactly tak
Externí odkaz:
http://arxiv.org/abs/0802.1248
Autor:
Kaupp, Y., Liraki, S., Tayurskii, D., Useinovb, A., Kaabouchi, A. El, Nivanen, L., Minisini, B., Tsobnang, F., Méhauté, A. Le, Wang, Q. A.
Publikováno v:
Journal of Low Temperature Physics 150 (2008) 660-666
Heavy electrons in superconducting materials are widely studied with the Kondo lattice t-J model. Numerical results have shown that the Fermi surface of these correlated particles undergoes a flattening effect according to the coupling degree J. This
Externí odkaz:
http://arxiv.org/abs/0802.1247
Publikováno v:
Physica A 386, 1 (2007) 92-100
This work is an extension of the incomplete probability theory from the simple case of monofractals previously studied to the more general case of multifractals which can occur in the phase space without equiprobable partition.
Comment: 10 pages
Comment: 10 pages
Externí odkaz:
http://arxiv.org/abs/0708.2609
Publikováno v:
Physica A, 340(2004)117
This is a study of the information evolution of complex systems by geometrical consideration. We look at chaotic systems evolving in fractal phase space. The entropy change in time due to the fractal geometry is assimilated to the information growth
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311175
The nonextensive statistics based on the $q$-entropy $S_q=-\frac{\sum_{i=1}^v(p_i-p_i^q)}{1-q}$ has been so far applied to systems in which the $q$ value is uniformly distributed. For the systems containing different $q$'s, the applicability of the t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0305398
Publikováno v:
Nuovo Comento B, 06, 635(2003)
We show that it is possible to replace the actual implicit distribution function of the fractional exclusion statistics by an explicit one whose form does not change with the parameter $\alpha$. This alternative simpler distribution function given by
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304413
In this paper, we show that 1) additive energy is not appropriate for discussing the validity of Tsallis or R\'enyi statistics for nonextensive systems at meta-equilibrium; 2) $N$-body systems with nonadditive energy or entropy should be described by
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304178