Flore Kunst | Exceptional non-Hermitian topology

▶Title: Exceptional non-Hermitian topology ▶Speaker: Flore Kunst ( MPI for the Science of Light ) ▶Abstract: While topological phases of matter have predominantly been studied for isolated Hermitian systems, a recent shift has been made towards considering these phases in the context of non-Hermitian Hamiltonians. Non-Hermitian topological phenomena reveal an enrichment of the phenomenology of topological phases, and forms a rapidly growing new cross-disciplinary field. In this talk, we will see that non-Hermitian Hamiltonians, which come about due to, e.g., gain and loss, feature many exotic properties, which are radically different from their Hermitian counterparts. In particular, I will focus on our recent work on higher-order exceptional points, which are truly non-Hermitian degeneracies, and symmetries, and present explicit toy models to illustrate our findings. ▶ About the MCQST Conference 2024: The Munich Conference on Quantum Science and Technology 2024 (MCQST 2024) brings together the Munich quantum community with international invited guests in academia and industry for three days of talks and poster sessions. Join hundreds of guests from around the world in the beautiful Bavarian Alps on 14-17 May 2024 to exchange ideas, learn about innovative research, and discuss the latest advancements in all fields of quantum science and technology. MCQST ▶ Conference: https://www.mcqst.de/conference2024 ▶ Website: https://www.mcqst.de ▶ Twitter:   / mcqst_cluster   ▶ LinkedIn:   / mcqst