376 citations · 7.2k across the 150 of their papers we have counts for
8 papers · 1 filter
Fate of zero modes in a finite Su-Schrieffer-Heeger Model with Symmetry
Zhihao Xu, Rong Zhang, Shu Chen +2
Due to the boundary coupling in a finite system, the zero modes of a standard Su-Schrieffer-Heeger (SSH) model may deviate from exact-zero energy. A recent experiment has shown tha…
Dynamical observation of mobility edges in one-dimensional incommensurate optical lattices
Zhihao Xu, Hongli Huangfu, Yunbo Zhang +1
We investigate the wave packet dynamics for a one-dimensional incommensurate optical lattice with a special on-site potential which exhibits the mobility edge in a compactly analyt…
Signature of nonequilibrium quantum phase transition in the long time average of Loschmidt echo
Bozhen Zhou, Chao Yang, Shu Chen
We unveil the role of the long time average of Loschmidt echo in the characterization of nonequilibrium quantum phase transitions by studying sudden quench processes across quantum…
Topological classification of defects in non-Hermitian systems
Chun-Hui Liu, Shu Chen
We classify topological defects in non-Hermitian systems with point gap, real gap and imaginary gap for all the Bernard-LeClair classes or generalized Bernard-LeClair classes in al…
Topological invariants, zero mode edge states and finite size effect for a generalized non-reciprocal Su-Schrieffer-Heeger model
Hui Jiang, Rong Lü, Shu Chen
Intriguing issues in one-dimensional non-reciprocal topological systems include the breakdown of usual bulk-edge correspondence and the occurrence of half-integer topological invar…
Mass-imbalanced atoms in a hard-wall trap: an exactly solvable model with emergent symmetry
Yanxia Liu, Fan Qi, Yunbo Zhang +1
We show that a system consisting of two interacting particles with mass ratio or in a hard-wall box can be exactly solved by using Bethe-type ansatz. The ansatz is based…