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.
|Journal||Physica A: Statistical Mechanics and its Applications|
|State||Published - 15 Feb 2021|
Bibliographical noteFunding Information:
H.N. and C.V.L. are grateful to CONCYTEC, Peru for partial financial support through the Excellence Center Program.
© 2020 Elsevier B.V.
- Electron flux
- Statistical complexity
- Structural disorder