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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