56 citations · 177 across the 18 of their papers we have counts for
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cond-mat.str-el2021★ 2 cited
Building ground states of Hubbard model by time-ordered bound-pair injection
K. L. Zhang, Z. Song
According to energy band theory, ground states of a normal conductor and insulator can be obtained by filling electrons individually into energy levels, without any restrictions. I…
quant-ph2021★ 9 cited
Transition from degeneracy to coalescence: theorem and applications
P. Wang, K. L. Zhang, Z. Song
Exceptional point (EP) is exclusive for non-Hermitian system and distinct from that at a degeneracy point (DP), supporting intriguing dynamics, which can be utilized to probe quant…
cond-mat.str-el2021★ 2 cited
Topologically protected two-fluid edge states
K. L. Zhang, Z. Song
Edge states reveal the nontrivial topology of energy band in the bulk. As localized states at boundaries, many-body edge states may obey a special symmetry that is broken in the bu…