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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…
quant-ph2014★ 12 cited
Complete particle-pair annihilation as a dynamical signature of the spectral singularity
G. R. Li, X. Z. Zhang, Z. Song
Motivated by the physical relevance of a spectral singularity of interacting many-particle system, we explore the dynamics of two bosons as well as fermions in one-dimensional syst…