Anderson Localization in Two-Channel Wires with Correlated Disorder: DNA as an Application

This research studied the Anderson localization of electrons in two-channel wires with correlated disorder and in DNA molecules. It involved an analytical calculation part where the formula for the inverse localization length for electron states in a two-channel wire is derived. It also involved a computational part where the localization length is calculated for some DNA molecules. Electron localization in two-channel wires with correlated disorder was studied using a single-electron tight-binding model. Calculations were within second-order Born-approximation to second-order in disorder parameters. An analytical expression for localization length as a functional of correlations in potentials was found. Anderson localization in DNA molecules were studied in single-channel wire and two-channel models for electron transport in DNA. In both of the models, some DNA sequences exhibited delocalized electron states in their energy spectrum. Studies with two-channel wire model for DNA yielded important link between electron localization properties and genetic information.

Grantor dc:publisher

University of North Texas

Year dc:date

2007

Author dc:creator

• Bagci, V. M. Kemal

Contributors dc:contributor

• Krokhin, Arkadii
• Grigolini, Paolo
• Neogi, Arup
• Deering, William D.

• Anderson localization
• two-channel wires
• electron transport
• DNA
• Anderson model.
• Electron configuration.
• Localization theory.
• DNA.

Statement dc:rights

• Public
• Copyright
• Bagci, V. M. Kemal
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 228067105
https://digital.library.unt.edu/ark:/67531/metadc5204/
ark: ark:/67531/metadc5204

OAI identifier oai:identifier

info:ark/67531/metadc5204