Sökning: "Wannier function"

Hittade 2 uppsatser innehållade orden Wannier function.

1. 1. Localized and extended states in finite-sized mosaic Wannier-Stark lattices

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Emrah Tortumlu; [2023]
   Nyckelord :Applied Physics; Condensed matter physics; quantum technology; quantum nanophotonics; localization; mobility edge; phase transition; Tillämpad Fysik; Kondenserade materiens fysik; kvantteknologi; kvantnanofotonik; lokalisering; fasövergång;

   Sammanfattning : Anderson localization occurs when an otherwise conductive solid becomes insulatingdue to a sufficiently large degree of disorder in the medium. The electron band energy(as a function of disorder) at which this transition between extended and localizedelectron states occur is called the mobility edge (ME) and is energy-dependent only in3-dimensional systems. LÄS MER

3. 2. Wannier functions from Bloch orbitals in solids

   Kandidat-uppsats, Materialteori

   Författare :Anders Stangel; [2013]
   Nyckelord :Wannier function; Wannier functions; Bloch orbital; Bloch orbitals;

   Sammanfattning : Wannierfunctions are a superposition of the Blochorbitals in a Brillouin zone belonging to a manifold of energy bands. These Wannier functions have several uses regarding the analysis of the crystal on a local level. LÄS MER