3 citations · 4 across the 5 of their papers we have counts for
7 papers
String Order in Quench Dynamics as a Probe of Quantum Phase Transitions
H. P. Zhang, Z. Song
We study the anisotropic XY chain in a transverse field by introducing a global string order parameter and examining its equilibrium behavior and its quench dynamics from a fully p…
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…
Bacterial turbulence at compressible fluid interfaces
Yuanfeng Yin, Bokai Zhang, H. P. Zhang +1
Dense bacterial suspensions at fluid interfaces provide a natural platform to explore active turbulence in a dimensional mismatch: active units are restricted to a two-dimensional…
Bacterial turbulence drives interfacial waves and shape dynamics in phase-separated droplets
Kan Chang, Yulin Li, Ming Yuan +3
Liquid-liquid phase separation is important across biology, physics, and materials science. Although usually studied at equilibrium, active components-such as motor proteins, enzym…
Detecting active Lévy particles using differential dynamic microscopy
Mingyang Li, Yu'an Li, H. P. Zhang +1
Detecting Lévy flights of cells has been a challenging problem in experiments. The challenge lies in accessing data in spatiotemporal scales across orders of magnitude, which is ne…
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…
Extended Wannier-Stark ladder and particle-pair Bloch oscillations in dimerized non-Hermitian systems
H. P. Zhang, Z. Song
In the Hermitian regime, the Wannier-Stark ladder characterizes the eigenstates of an electron in a periodic potential with an applied static electric field. In this work, we exten…