42 citations · 115 across the 5 of their papers we have counts for
4 papers · 1 filter
Sudden death of particle-pair Bloch oscillation and unidirectional propagation in a one-dimensional driven optical lattice
S. Lin, X. Z. Zhang, Z. Song
We study the dynamics of bound pairs in the extended Hubbard model driven by a linear external field. It is shown that two interacting bosons or singlet fermions with nonzero on-si…
Transmission phase lapse in the non-Hermitian Aharonov-Bohm interferometer near the spectral singularity
G. Zhang, X. Q. Li, X. Z. Zhang +1
We study the effect of PT-symmetric imaginary potentials embedded in the two arms of an Aharonov-Bohm interferometer on the transmission phase by finding an exact solution for a co…
Asymmetric transmission through a flux-controlled non-Hermitian scattering center
X. Q. Li, X. Z. Zhang, G. Zhang +1
We study the possibility of asymmetric transmission induced by a non-Hermitian scattering center embedded in a one-dimensional waveguide, motivated by the aim of realizing quantum…
Conventional quantum phase transition driven by complex parameter in non-Hermitian PT-symmetric Ising model
C. Li, G. Zhang, X. Z. Zhang +1
A conventional quantum phase transition (QPT) can be accessed by varying a real parameter at absolute zero temperature. Motivated by the discovery of the pseudo-Hermiticity of non-…