409 citations · 529 across the 6 of their papers we have counts for
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cond-mat.mes-hall2019★ 6 cited
Topological Classificaton of Non-Hermitian Gapless Phases: Exceptional Points and Bulk Fermi Arcs
Takumi Bessho, Kohei Kawabata, Masatoshi Sato
We provide classification of gapless phases in non-Hermitian systems according to two types of complex-energy gaps: point gap and line gap. We show that exceptional points, at whic…
cond-mat.mes-hall2019★ 409 cited
Classification of Exceptional Points and Non-Hermitian Topological Semimetals
Kohei Kawabata, Takumi Bessho, Masatoshi Sato
Exceptional points are universal level degeneracies induced by non-Hermiticity. Whereas past decades witnessed their new physics, the unified understanding has yet to be obtained.…