Sökning: "Non-Hermitian"
Visar resultat 1 - 5 av 15 avhandlingar innehållade ordet Non-Hermitian.
1. Non-Hermitian Symmetric Nodal Phases
Sammanfattning : I den här avhandlingen introducerar vi ämnen som är centrala för de bifogade artiklarna [Art. I, Art. II, Art. III]. LÄS MER
2. Topology off the beaten path : From critical to non-Hermitian systems
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
3. Topological Phases of Non-Hermitian physics
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
4. Bulk-boundary correspondence in non-Hermitian systems
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
5. Photonic Waveguide Modelling of Non-Hermitian Hamiltonians
Sammanfattning : The branch of condensed matter physics focusing on topological phases of matter has rapidly grown into a major part of the research field. A common feature of topological models is their robust edge and corner states, that are robust against perturbations of the Hamiltonian. This work studies such edge and corner states experimentally. LÄS MER
