Sökning: "hermitian"

Visar resultat 1 - 5 av 46 avhandlingar innehållade ordet hermitian.

  1. 1. Non-Hermitian Symmetric Nodal Phases

    Författare :J. Lukas K. König; Emil J. Bergholtz; Adrien Bouhon; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; non-hermitian; symmetry; nodal phases; Theoretical Physics; teoretisk fysik;

    Sammanfattning : I den här avhandlingen introducerar vi ämnen som är centrala för de bifogade artiklarna [Art. I, Art. II, Art. III]. LÄS MER

  3. 2. Topology off the beaten path : From critical to non-Hermitian systems

    Författare :Carlos Ortega-Taberner; Maria Hermanns; Joost Slingerland; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Topological phases; Critical systems; Non-Hermitian systems; Theoretical Physics; teoretisk fysik;

    Sammanfattning : A central topic in condensed matter research during the last decades has been the study and classification of topological phases of matter. Topological insulators in particular, a subset of symmetry protected topological phases, have been investigated for over a decade. LÄS MER

  4. 3. Topological Phases of Non-Hermitian physics

    Författare :Lukas Rødland; Maria Hermanns; Jorge Cayao; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical Physics; teoretisk fysik;

    Sammanfattning : Non-Hermitian physics has introduced phenomena like the skin effect and exceptional points, challenging traditional views of topological phases. This thesis contrasts two classification frameworks for non-Hermitian systems. LÄS MER

  5. 4. Hermitian lattices over rings with involutions

    Författare :Anette Wiberg; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  7. 5. Bulk-boundary correspondence in non-Hermitian systems

    Författare :Elisabet Edvardsson; Emil J. Bergholtz; Vladimir Juričić; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; teoretisk fysik; Theoretical Physics;

    Sammanfattning : The bulk-boundary correspondence, which in topological insulators describes the relationship between the bulk invariant computed for a system with periodic boundary conditions and the number of boundary states in the corresponding system with open boundary conditions, is well-known and important for predicting the behavior of these systems. In recent years, however, the modeling of dissipative and non-equilibrium systems using non-Hermitian Hamiltonians has become increasingly popular. LÄS MER