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Bulk-edge correspondence for nonlinear eigenvalue problems
Takuma Isobe, Tsuneya Yoshida, Yasuhiro Hatsugai
Although topological phenomena attract growing interest not only in linear systems but also in nonlinear systems, the bulk-edge correspondence under the nonlinearity of eigenvalues…
Non-Hermitian Mott Skin Effect
Tsuneya Yoshida, Song-Bo Zhang, Titus Neupert +1
We propose a novel type of skin effects in non-Hermitian quantum many-body systems which we dub a non-Hermitian Mott skin effect. This phenomenon is induced by the interplay betwee…
Interaction-induced Liouvillian skin effect in a fermionic chain with a two-body loss
Shu Hamanaka, Kazuki Yamamoto, Tsuneya Yoshida
Despite recent intensive research on topological aspects of open quantum systems, effects of strong interactions have not been sufficiently explored. In this paper, we demonstrate…
Higher-order topological heat conduction on a lattice for detection of corner states
T. Fukui, T. Yoshida, Y. Hatsugai
A heat conduction equation on a lattice composed of nodes and bonds is formulated assuming the Fourier law and the energy conservation law. Based on this equation, we propose a hig…
Non-Hermitian skin effect in equilibrium heavy-fermions
Shin Kaneshiro, Tsuneya Yoshida, Robert Peters
We demonstrate that a correlated equilibrium -electron system with time-reversal symmetry can exhibit a non-Hermitian skin effect of quasi-particles. In particula…