Essays about: "Wannier Functions"

Found 2 essays containing the words Wannier Functions.

  1. 1. Wannier Functions in non-Hermitian Systems

    University essay from KTH/Fysik

    Author : Alberto Zorzato; [2022]
    Keywords : Theoretical Physics; Condensed Matter Physics; non-Hermitian Systems; Wannier Functions;

    Abstract : The scope of this thesis is analyzing and characterizing certain gapless states in tight-binding non-Hermitian systems. We start by providing a pedagogical introduction to tight-binding theory, topological phases of matter, Wannier functions as real-space duals of Bloch functions and their properties, non-Hermitian systems and associated differences from standard Hermitian systems. READ MORE

  3. 2. Wannier functions from Bloch orbitals in solids

    University essay from Materialteori

    Author : Anders Stangel; [2013]
    Keywords : Wannier function; Wannier functions; Bloch orbital; Bloch orbitals;

    Abstract : 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. READ MORE