Search Results - subject:"Bogoliubov inequality"

Generalized statistics variational perturbation approximation using q-deformed calculus

Venkatesan, R.C.; Plastino, A. - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 6, pp. 1159-1172

candidate q-deformed generalized VPA (GVPA) is derived with the aid of the Hellmann–Feynman theorem. The generalized Bogoliubov … inequality for the approximate GFE are derived for the case of canonical probability densities that maximize the Tsallis entropy …

Persistent link: https://www.econbiz.de/10011062447

Variational methods in nonextensive Tsallis statistics: a comparative study

Mendes, R.S.; Lopes, C.A.; Lenzi, E.K.; Malacarne, L.C. - In: Physica A: Statistical Mechanics and its Applications 344 (2004) 3, pp. 562-567

In the context of nonextensive Tsallis statistics, sensible examples are employed in order to compare the variational method proposed in Phys. Rev. Lett. 80 (1998) 218 with the one in J. Phys. A 26 (1993) L893. These examples are such that they can be solved exactly. Thus, a comparison of the...

Persistent link: https://www.econbiz.de/10010589973