Title
Relationship between electron flux and electron complexity in a disordered Dirac comb
Date Issued
15 February 2021
Access level
metadata only access
Resource Type
journal article
Publisher(s)
Elsevier B.V.
Abstract
The transfer matrix method is used to calculate the electronic states of a finite chain of structurally disordered delta-function potentials. With the probability density for the electrons in the chain we calculate a complexity measure C for a continuous probability distribution, defined by a function of Shannon's entropy H, as an order measure of the chain, and the inverse participation ratio, or disequilibrium D, as a measure of localization of electron states. C is minimal for a completely ordered and maximal for a completely disordered chain. It is used as an indicator for the electronic transport in disordered systems characterized by a disorder parameter W. We also compare C with the transmission coefficient, T, and the inverse participation ratio D. A statistical interpretation is formulated based on the relationship between the disorder in the delta-function potentials and the transmitted and reflected electron flux. Hence, we are able to interpret the behavior of C with the formation of localized Gaussian distribution of the transmitted and reflected electron current j for growing disorder W.
Volume
564
Language
Spanish
OCDE Knowledge area
Química física
Ingeniería química
Subjects
Scopus EID
2-s2.0-85095423664
Source
Physica A: Statistical Mechanics and its Applications
ISSN of the container
03784371
Sponsor(s)
H.N. and C.V.L. are grateful to CONCYTEC, Peru for partial financial support through the Excellence Center Program.
Sources of information:
Directorio de Producción Científica
Scopus