3 papers
cond-mat.mes-hall2026
Floquet-Sambe Bottleneck and Frequency-Selective Localization in a Driven Synthetic Spin Chain
J. Cao, K. L. Zhang, R. Wang +1
We study a finite Floquet chain in which a uniform nearest-neighbor hopping coexists with a periodically rotating, \textrm{SU(2)}-dictated spin-assisted hopping profile. The result…
cond-mat.str-el2025
Dynamically stable topological edge states in an extended Su-Schrieffer-Heeger ladder with balanced perturbation
E. S. Ma, K. L. Zhang, Z. Song
The on-site potentials may break the symmetry of a system, resulting in the loss of its original topology protected by the symmetry. In this work, we study the counteracting effect…
quant-ph2024
Dynamics of non-Hermitian Floquet Wannier-Stark system
H. P. Zhang, K. L. Zhang, Z. Song
We study the dynamics of the non-Hermitian Floquet Wannier-Stark system in the framework of the tight-binding approximation, where the hopping strength is a periodic function of ti…