From the 1 of 6 linked papers with an AI index.
6 papers
Topological characterization of multifold band degeneracies in Altland-Zirnbauer symmetry classes
Askar Iliasov, Zoltán Guba, Tsuneya Yoshida +2
The paper develops a topological classification for generic n‑fold band degeneracies that are protected solely by Altland‑Zirnbauer symmetries, using linked nodal manifolds instead…
Hopf Exceptional Points
Tsuneya Yoshida, Emil J. Bergholtz, Tomáš Bzdušek
Exceptional points at which eigenvalues and eigenvectors of non-Hermitian matrices coalesce are ubiquitous in the description of a wide range of platforms from photonic or mechanic…
Interacting Electronic Topology of Nonlocal Crystals
Shu Hamanaka, Martina O. Soldini, Tsuneya Yoshida +1
Nonlocal crystals are systems with translational symmetry but arbitrary range couplings or interactions between degrees of freedom. We argue that the notion of topology in such sys…
Multifractal statistics of non-Hermitian skin effect on the Cayley tree
Shu Hamanaka, Askar A. Iliasov, Titus Neupert +2
Multifractal analysis is a powerful tool for characterizing the localization properties of wave functions. Despite its utility, this tool has been predominantly applied to disorder…
Winding Topology of Multifold Exceptional Points
Tsuneya Yoshida, J. Lukas K. König, Lukas Rødland +2
Despite their ubiquity, a systematic classification of multifold exceptional points, -fold spectral degeneracies (EPs), remains a significant unsolved problem. In this articl…
Non-Hermitian Topology in Hermitian Topological Matter
Shu Hamanaka, Tsuneya Yoshida, Kohei Kawabata
Non-Hermiticity gives rise to distinctive topological phenomena absent in Hermitian systems. However, connection between such intrinsic non-Hermitian topology and Hermitian topolog…