1.3k citations · 1.4k across the 2 of their papers we have counts for
20 papers
Many-body topology of non-Hermitian systems
Kohei Kawabata, Ken Shiozaki, Shinsei Ryu
Non-Hermiticity gives rise to unique topological phases that have no counterparts in Hermitian systems. Such intrinsic non-Hermitian topological phases appear even in one dimension…
Topological Field Theory of Non-Hermitian Systems
Kohei Kawabata, Ken Shiozaki, Shinsei Ryu
Non-Hermiticity gives rise to unique topological phases without Hermitian analogs. However, the effective field theory has yet to be established. Here, we develop a field-theoretic…
Higher-order non-Hermitian skin effect
Kohei Kawabata, Masatoshi Sato, Ken Shiozaki
The non-Hermitian skin effect is a unique feature of non-Hermitian systems, in which an extensive number of boundary modes appear under the open boundary conditions. Here, we disco…
Nonunitary Scaling Theory of Non-Hermitian Localization
Kohei Kawabata, Shinsei Ryu
Non-Hermiticity can destroy Anderson localization and lead to delocalization even in one dimension. However, the unified understanding of the non-Hermitian delocalization has yet t…
Real spectra in non-Hermitian topological insulators
Kohei Kawabata, Masatoshi Sato
Spectra of bulk or edges in topological insulators are often made complex by non-Hermiticity. Here, we show that symmetry protection enables entirely real spectra for both bulk and…
Non-Bloch band theory of non-Hermitian Hamiltonians in the symplectic class
Kohei Kawabata, Nobuyuki Okuma, Masatoshi Sato
Non-Hermitian Hamiltonians are generally sensitive to boundary conditions, and their spectra and wave functions under open boundary conditions are not necessarily predicted by the…