2 papers
quant-ph2025
Entanglement manifestation of knot topology in a non-Hermitian lattice
Guoying Zhang, Li Wang, Shu Chen
Although the homotopy-knot theory has been utilized to implement effective topological classification for non-Hermitian systems, the physical implications underlying distinct knot…
quant-ph2018
Classical correspondence of the exceptional points in the finite non-Hermitian system
X. Z. Zhang, G. Zhang, Z. Song
We systematically study the topology of the exceptional point (EP) in the finite non-Hermitian system. Based on the concrete form of the Berry connection, we demonstrate that the e…