25 citations · 107 across the 8 of their papers we have counts for
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Analysis of Dirac exceptional points and their isospectral Hermitian counterparts
Jose H. D. Rivero, Liang Feng, Li Ge
Recently, a Dirac exceptional point (EP) was reported in a non-Hermitian system. Unlike a Dirac point in Hermitian systems, this Dirac EP has coalesced eigenstates in addition to t…
Imaginary gauge transformation in momentum space and Dirac exceptional point
Jose H. D. Rivero, Liang Feng, Li Ge
An imaginary gauge transformation is at the core of the non-Hermitian skin effect. Here we show that such a transformation can be performed in momentum space as well, which reveals…
Pseudo-chirality: a manifestation of Noether's theorem in non-Hermitian systems
Jose D. H. Rivero, Li Ge
Noether's theorem relates constants of motion to the symmetries of the system. Here we investigate a manifestation of Noether's theorem in non-Hermitian systems, where the inner pr…
Chiral symmetry in non-Hermitian systems: product rule and Clifford algebra
Jose D. H. Rivero, Li Ge
Chiral symmetry provides the symmetry protection for a large class of topological edge states. It exists in non-Hermitian systems as well, and the same anti-commutation relation be…