37 citations · 37 across the 1 of their papers we have counts for
4 papers
Flat band in two-dimensional non-Hermitian optical lattices
S. M. Zhang, L. Jin
We propose a method to generate a real-energy flat band in a two-dimensional (2D) non-Hermitian Lieb lattice. The coincidence of the flat band eigenstate in both real and momentum…
Asymmetric lasing at spectral singularities
L. Jin
Scattering coefficients can diverge at spectral singularities. In such situation, the stationary solution becomes a laser solution with outgoing waves only. We explore a parity-tim…
Parity-time symmetric coupled asymmetric dimers
L. Jin
We investigate a parity-time (PT) symmetric system that consists of two symmetrically coupled asymmetric dimers. The enclosed magnetic flux controls the PT phase transition. The sy…
Sensitivity of parameter estimation near the exceptional point of a non-Hermitian system
Chong Chen, Liang Jin, Ren-Bao Liu
The exceptional points of non-Hermitian systems, where different energy eigenstates merge into an identical one, have many intriguing properties that have no counterparts in He…