2 papers
cond-mat.mes-hall2024
Eigenstate switching of topologically ordered states using non-Hermitian perturbations
Cheol Hun Yeom, Beom Hyun Kim, Moon Jip Park
Topologically ordered phases have robust degenerate ground states against the local perturbations, providing a promising platform for fault-tolerant quantum computation. Despite of…
cond-mat.str-el2023
Collective non-Hermitian skin effect: Point-gap topology and the doublon-holon excitations in non-reciprocal many-body systems
Beom Hyun Kim, Jae-Ho Han, Moon Jip Park
Open quantum systems provide a plethora of exotic topological phases of matter that has no Hermitian counterpart. Non-Hermitian skin effect, macroscopic collapse of bulk states to…