Author/Authors :
Fecher، G.H. نويسنده , , Braun، J. نويسنده , , Cherepkov، N.A. نويسنده , , Chernysheva، L.V. نويسنده , , Jentzsch، Th. نويسنده , , Morais، J. نويسنده , , Oelsner، A. نويسنده , , Ostertag، Ch. نويسنده , , Paul، J. نويسنده , , H.Ufer، نويسنده , , G.Schonhense، نويسنده ,
Abstract :
By using integral representations the perturbation expansion and the Bogoliubov inequality ain nonextensive Tsallis statistics are investigated in a unified way. This procedure extends the analysis performed recently by Lenzi et al. [Phys. Rev. Lett. 80, 218 (1998)] to the quantum (discrete spectra) case, for q < 1. An example is presented in order to illustrate the method.
Keywords :
photoelectron spectra , Optical properties of specific thin films , surfaces , low-dimensional structures , Photoemission
