67 citations · 76 across the 12 of their papers we have counts for
Showing 2017Show all
2 papers · 1 filter
quant-ph2017★ 2 cited
Spectral singularity in composite systems and simulation of a resonant lasing cavity
X. Z. Zhang, G. R. Li, Z. Song
We investigate herein the existence of spectral singularities (SSs) in composite systems that consist of two separate scattering centers A and B embedded in one-dimensional free sp…
cond-mat.str-el2017★ 7 cited
Non-Hermitian description of the dynamics of inter-chain pair tunnelling
X. Z. Zhang, L. Jin, Z. Song
We study inter-chain pair tunnelling dynamics based on an exact two-particle solution for a two-leg ladder. We show that the Hermitian Hamiltonian shares a common two-particle eige…