作者: A. Méndez , V. Gopar , I. Varga
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摘要: We study numerically the conductance distribution function w(T) for one-dimensional Anderson model with random long-range hopping described by Power-law Banded Random Matrix at criticality. concentrate on case of two single-channel leads attached to system. observe a smooth transition from localized delocalized behavior in increasing b, effective bandwidth model. Also, b < 1 we show that w(ln T/Ttyp) is scale invariant, where Ttyp = exp 〈 ln T 〉 typical value T. Moreover, find Ttyp, shows universal proportional (T/Ttyp)-1/2.