57 citations · 171 across the 6 of their papers we have counts for
6 papers
Symmetry protected topological phases characterized by isolated exceptional points
S. Lin, L. Jin, Z. Song
Exceptional point (EP) associated with eigenstates coalescence in non-Hermitian systems has many exotic features. The EPs are generally sensitive to system parameters, here we repo…
Wide-range-tunable Dirac-cone band structure in a chiral-time-symmetric non-Hermitian system
S. Lin, Z. Song
We establish a connection between an arbitrary Hermitian tight-binding model with chiral (C) symmetry and its non-Hermitian counterpart with chiral-time (CT ) symmetry.We show that…
Scaling behavior and phase diagram of a PT-symmetric non-Hermitian Bose-Hubbard system
L. Jin, Z. Song
We study scaling behavior and phase diagram of a PT-symmetric non-Hermitian Bose-Hubbard model. In the free interaction case, using both analytical and numerical approaches, the me…
A physical interpretation for the non-Hermitian Hamiltonian
L. Jin, Z. Song
We explore a way of finding the link between a non-Hermitian Hamiltonian and a Hermitian one. Based on the analysis of Bethe Ansatz solutions for a class of non-Hermitian Hamiltoni…
Rigorous results for tight-binding networks: particle trapping and scattering
L. Jin, Z. Song
We investigate the particle trapping and scattering properties in a tight-binding network which consists of several subgraphs. The particle trapping condition is proved under which…
Coherent shift of localized bound pair in Bose Hubbard model
L. Jin, B. Chen, Z. Song
Based on the exact results obtained by Bethe ansatz, we demonstrate the existence of stable bound pair (BP) wave packet in Bose Hubbard model with arbitrary on-site interaction U.…