Numerical indications of a q-generalised central limit theorem
Numerical indications of a q-generalised central limit theorem
复制标题
q-广义中心极限定理的数值表示
DOI:
10.1209/epl/i2005-10487-1
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发表时间:
2005
期刊:
影响因子:
1.8
通讯作者:
M. Gell
中科院分区:
文献类型:
--
作者:
L. G. Moyano;C. Tsallis;M. Gell
We provide numerical indications of the q-generalised central limit theorem that has been conjectured ( TSALLIS C., Milan J. Math., 73 (2005) 145) in nonextensive statistical mechanics. We focus on N binary random variables correlated in a scale-invariant way. The correlations are introduced by imposing the Leibnitz rule on a probability set based on the so-called q-product with q ≤ 1. We show that, in the large-N limit (and after appropriate centering, rescaling, and symmetrisation), the emerging distributions are qe-Gaussians, i.e., p(x) ∝ [1-(1-q_e), β(N)x^2]^{1/(1-q_e)}, with q_e=2-(1/q), and with coefficients β(N) approaching finite values β(∞). The particular case q=q_e=1 recovers the celebrated de Moivre-Laplace theorem.