Universal Conductance Distribution in the Quantum Size Regime

Preprint

14 June 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9406057

Abstract

We study the conductance (g) distribution function of an ensemble of isolated conducting rings, with an Aharonov--Bohm flux. This is done in the discrete spectrum limit, i.e., when the inelastic rate, frequency and temperature are all smaller than the mean level spacing. Over a wide range of g the distribution function exhibits universal behavior P(g)\sim g^{-(4+\beta)/3}, where \beta=1 (2) for systems with (without) a time reversal symmetry. The nonuniversal large g tail of this distribution determines the values of high moments.

Keywords

CONDUCTANCE DISTRIBUTION
UNIVERSAL CONDUCTANCE
EXHIBITS UNIVERSAL
FUNCTION EXHIBITS
REVERSAL SYMMETRY
INELASTIC RATE
QUANTUM SIZE
SIZE REGIME
ENSEMBLE

All Related Versions

Version 1, 1994-06-14, ArXiv
Published version: Europhysics Letters, 29 (5), 413.

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