71 citations · 275 across the 13 of their papers we have counts for
13 papers
Mixed higher-order topology: boundary non-Hermitian skin effect induced by a Floquet bulk
Hui Liu, Ion Cosma Fulga
We show that anomalous Floquet topological insulators generate intrinsic, non-Hermitian topology on their boundary. As a consequence, removing a boundary hopping from the time-evol…
Quantum mechanics of fermion confined to a curved surface in Foldy-Wouthuysen representation
Hao Zhao, Yong-Long Wang, Cheng-Zhi Ye +3
In Foldy-Wouthuysen representation, we deduce the effective quantum mechanics for a particle confined to a curved surface by using the thin-layer quantization scheme. We find that…
Geometry-induced Monopole Magnetic Field and Quantum Spin Hall Effect
Yong-Long Wang, Hao Zhao, Hua Jiang +2
The geometric effects of two-dimensional curved systems have been an interesting topic for a long time. A Möbius surface is specifically considered. For a relativistic particle con…
Supermetal-insulator transition in a non-Hermitian network model
Hui Liu, Jhih-Shih You, Shinsei Ryu +1
We study a non-Hermitian and non-unitary version of the two-dimensional Chalker-Coddington network model with balanced gain and loss. This model belongs to the class D^dagger with…
Network model for higher-order topological phases
Hui Liu, Selma Franca, Ali G. Moghaddam +2
We introduce a two-dimensional network model that realizes a higher-order topological phase (HOTP). We find that in the HOTP the bulk and boundaries of the system are gapped, and a…
Anomalous levitation and annihilation in Floquet topological insulators
Hui Liu, Ion Cosma Fulga, Janos K. Asboth
Anderson localization in two-dimensional topological insulators takes place via the so-called levitation and pair annihilation process. As disorder is increased, extended bulk stat…
Effective dynamics for a spin-1/2 particle constrained to a space curve in an electric and magnetic field
Guo-Hua Liang, Yong-Long Wang, Meng-Yun Lai +3
We consider the dynamics of a spin-1/2 particle constrained to move in an arbitrary space curve with an external electric and magnetic field applied. With the aid of gauge theory,…
Geometry induced quantum Hall effect and Hall viscosity
Yong-Long Wang, Hong-Shi Zong, Hui Liu +1
For a particle confined to the two-dimensional helical surface embedded in four-dimensional (4D) Euclidean space, the effective Hamiltonian is deduced in the thin-layer quantizatio…
Spin polarization of electrons through corrugated surface in magnetic field
Hao Zhao, Yong-Long Wang, Run Cheng +4
Noninteracting electrons confined to a corrugated surface are investigated in magnetic field, and the associated effective Pauli equation is given analytically by the thin-layer qu…
Floquet engineering to exotic topological phases in systems of cold atoms
Hui Liu, Tian-Shi Xiong, Wei Zhang +1
Topological phases with a widely tunable number of edge modes have been extensively studied as a typical class of exotic states of matter with potentially important applications. A…
Pseudo-magnetic field and effective spin-orbit interaction for a spin-1/2 particle confined to a curved surface
Guo-Hua Liang, Yong-Long Wang, Meng-Yun Lai +3
By considering the spin connection, we deduce the effective equation for a spin-1/2 particle confined to a curved surface with the non-relativistic limit and in the thin-layer quan…
Metallic ferroelectricity induced by anisotropic unscreened coulomb interaction in LiOsO3
H. M. Liu, Y. P. Du, Y. L. Xie +3
As the first well-documented example of the ferroelectric metal, LiOsO3 has received extensive research attention recently. Using density-functional calculations, we perform a syst…
Lagrange Model for the Chiral Optical Properties of Stereometamaterials
H. Liu, J. X. Cao, S. N. Zhu +3
We employ a general Lagrange model to describe the chiral optical properties of stereometamaterials. We derive the elliptical eigenstates of a twisted stacked split-ring resonator,…