Sökning: "Anderson localization"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Anderson localization.

  1. 1. Strong n-generators in some one-dimensional domains

    Författare :Kerstin Pettersson; Daniel D Anderson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK; matematik; Mathematics;

    Sammanfattning : Let R be a commutative Noetherian one-dimensional domain such that each ideal in R can be generated by n elements. A strong n-generator in R is an element r which can be chosen as one of n generators for each ideal in which it is contained. LÄS MER

  3. 2. Theoretical studies on one-, two- and three-dimensional carbon structures

    Författare :Mattias Hjort; Linköpings universitet; []
    Nyckelord :Tight binding; Hückel; Fullerenes; graphite; Anderson localization; transfer matrix;

    Sammanfattning : This thesis deals with electronic structure calculations in large carbon based materials, Especially graphite like structures have been studied. For this the tight binding method together with more sophisticated quantum chemical methods has been utilised. LÄS MER

  4. 3. Interaction and disorder in helical conductors

    Författare :Anders Ström; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; physics; helical conductors; topological insulators; Anderson localization; condensed matter;

    Sammanfattning : Different effects from electron-electron interactions and disorder in helical and quasi-helical conductors are studied using bosonisation and renormalisation group methods. The combined effects of Rashba spin-orbit interaction and magnetic Kondo-type impurities in the helical edge liquids of quantum spin Hall insulators, are investigated. LÄS MER

  5. 4. Electronic properties of double quantum wires in a magnetic field

    Författare :Sviatoslav Korepov; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; Fysik; fysik; Physics;

    Sammanfattning : The electronic properties of double quantum wires (DQW) in presence of a per-pendicular magnetic field are investigated theoretically. Analytical solution of theproblem of electronic spectrum is obtained in the framework of the two-subbandmodel for the DQW. LÄS MER

  7. 5. Electron transport in π-conjugated systems

    Författare :Magnus Paulsson; Libero Zuppiroli; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : This thesis deals with theoretical studies of electron localization and conductance in conjugated molecular systems. Anderson localization of electrons is examined for nearly one-dimensional systems. This work was performed to understand the peculiar electronic properties of conducting polymers. LÄS MER