Скачать или смотреть Jan Carl Budich - Exceptional Topology of Quasiparticles

October 21, 2024

In a variety of physical scenarios ranging from classical meta-materials to correlated quantum many-body systems, non-Hermitian (NH) Hamiltonians have proven to be a powerful and conceptually simple tool for effectively describing dissipation. Recently, investigating the topological properties of such NH systems has become a broad frontier of research. In this talk, Jan Carl Budich will discuss how NH topological features such as stable exceptional degeneracies and a remarkable spectral sensitivity with respect to boundary conditions can emerge in the quasi-particle description of correlated electron systems that are globally described by a Hermitian Hamiltonian.

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