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Quantum discreteness and fundamental 1/f noise in tunnel junctions, nano-composites and other many-electron systems

2000/10/27 by Yu. E. Kuzovlev, Kuzovlev, Yu. E., Yu. V. Medvedev +4
Physics and Astronomy · #FOS: Physical sciences #Mechanical and Optical Resonators #Quantum and electron transport phenomena #Statistical Mechanics (cond-mat.stat-mech) #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.stat-mech #cond-mat.str-el #stochastic dynamics and bifurcation

paper · pdf · doi:10.48550/arxiv.cond-mat/0010447

16 pages, no figures

arxiv created 2000/10/27 · openalex publication_date 2000/10/27 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

It is shown, with citing tunnel junction as an example, that mutual interplay of electron quantum transfers in a conducting system can be the fast mechanism for generation fundamental low-frequency flicker conductance fluctuations (1/f noise) without composing Lorentzians. This effect is lost in a theory which neglects the actual discreteness of electron energy levels. The analytical estimates of fluctuations of tunnel conductance are obtained, and the strong 1/f-noise sensibility to the discreteness as observed in nano-composites is explained both qualitatively and quantitatively.

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