3 papers
cond-mat.stat-mech2001
Remarks on expansion and factorization approximation in the Tsallis nonextensive statistical mechanics
E. K. Lenzi, R. S. Mendes, L. R. da Silva +1
The validity of (1-q) expansion and factorization approximations are analysed in the framework of Tsallis statistics. We employ exact expressions for classical independent systems…
cond-mat.stat-mech2001
Spin wave specific heat in quasiperiodic Fibonacci structures
C. G. Bezerra, E. L. Albuquerque, A. M. Mariz +2
The energy spectra of a variety of collective modes on quasiperiodic structures exhibit a complex fractal profile. Among the modes that have attracted particular attention in this…
cond-mat.stat-mech2000
Reply to ``Comment on `Critical behavior of a two-species reaction-diffusion problem' ''
J. E. de Freitas, L. S. Lucena, L. R. da Silva +1
Our recent Monte Carlo results [Phys. Rev. E 61 (2000) 6330] for the one-dimensional reaction-diffusion process A+B->2B and B->A lead to the correlation length exponent estimate nu…