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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2011 Volume 93, Issue 9, Pages 561–565 (Mi jetpl1890)

This article is cited in 7 papers

CONDENSED MATTER

Distribution of the conductance of a linear chain of tunnel barriers with fractal disorder

R. T. Sibatov

Ulyanovsk State University

Abstract: Distributions of the conductance G of a long quantum wire with the fractal distribution of barriers have been obtained in the successive incoherent tunneling regime. The asymptotic behavior (in the limit $L\to\infty$) of moments $\langle G^k(L)\rangle$, average power of the shot noise $\langle S(L)\rangle$, and Fano factor agree with the results of the work [C. W. J. Beenakker et al., Phys. Rev. B 79, 024204 (2009)], and the distributions themselves describe well the Monte Carlo simulation results. The equation that has been obtained for the distributions of the resistance and conductance agrees with the recent fractional differential generalization of the Dorokhov-Mello-Pereyra-Kumar equation for the quasi-one-dimensional multichannel disordered semiconductors with a self-similar distribution of scatterers.

Received: 02.03.2011


 English version:
Journal of Experimental and Theoretical Physics Letters, 2011, 93:9, 503–507

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