4 papers
Periodic dynamics in an Ising chain with a quadratic transverse field
H. P. Zhang, Z. Song
A quadratic well plays a central role in a wide variety of modern physical theories and applications. In this work, we investigate many-body dynamics in a quadratic well, using an…
Formations of generalized Wannier-Stark ladders: Theorem and applications
H. P. Zhang, Z. Song
The Wannier-Stark ladder (WSL) is a basic concept, supporting periodic oscillation, widely used in many areas of physics. In this paper, we investigate the formations of WSL in gen…
Dynamic Moiré-like pattern in non-Hermitian Wannier-Stark ladder system
H. P. Zhang, Z. Song
We study the dynamical behavior of the non-Hermitian Wannier-Stark ladder system, which is a non-Hermitian Su-Schrieffer-Heeger chain with a position-dependent real potential. In t…
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…