568 citations · 1.8k across the 61 of their papers we have counts for
12 papers · 1 filter
Pseudo-magnetic fields in square lattices
Junsong Sun, Xingchuan Zhu, Tianyu Liu +2
We have investigated the effects of strain on two-dimensional square lattices and examined the methods for inducing pseudo-magnetic fields. In both the columnar and staggered -f…
Hybrid higher-order skin-topological effect in hyperbolic lattices
Junsong Sun, Chang-An Li, Shiping Feng +1
We investigate the non-Hermitian Haldane model on hyperbolic and lattices, and showcase its intriguing topological properties in the simultaneous presence of…
Strain-induced pseudo-magnetic field in lattice
Junsong Sun, Tianyu Liu, Yi Du +1
We investigate the effects of a nonuniform uniaxial strain and a triaxial strain on the lattice. The analytical expressions of the pseudo-Landau levels (pLLs) are de…
Kaleidoscope of symmetry protected topological phases in one-dimensional periodically modulated lattices
Huaiming Guo, Shu Chen
We identify the existence of various symmetry-protected topological states in one-dimensional superlattices with periodically modulated hopping amplitudes or on-site potentials, wh…
Dimensional evolution between one- and two-dimensional topological phases
Huaiming Guo, Lin Yang, Shun-Qing Shen
Dimensional evolution between one- () and two-dimensional () topological phases is investigated systematically. The crossover from a topological insulator to its …
Quantum pumping induced by disorder in one dimension
Jihong Qin, Huaiming Guo
The topological property in one dimension (1D) is protected by symmetry. Based on a concrete model, we show that since a 1D topological model usually contain two of the three Pauli…
Can spontaneous symmetry breaking order develop in a topological phase?
Huaiming Guo
Landau's symmetry breaking theory is the basis of modern condensed matter physics, from which most phases can be understood. The recent discovery of topological insulators simulate…
Fractional topological phase in one-dimensional flatbands with nontrivial topology
Huaiming Guo, Shun-Qing Shen, Shiping Feng
We show the existence of the fractional topological phase (FTP) in a one-dimensional interacting fermion model using exact diagonalization, in which the non-interacting part has fl…
Topological phase in one-dimensional interacting fermion system
Huaiming Guo, Shun-Qing Shen
We study a one-dimensional interacting topological model by means of exact diagonalization method. The topological properties are firstly examined with the existence of the edge st…
Quantum spin Hall effect induced by non-magnetic and magnetic staggered potentials
Huaiming Guo, Shiping Feng, Shun-Qing Shen
We have a comparative study of the quantum spin Hall (QSH) effects induced by non-magnetic and magnetic staggered potentials respectively and show that they have the same effect in…
Topological Anderson Insulator in Three Dimensions
H. -M. Guo, G. Rosenberg, G. Refael +1
Disorder, ubiquitously present in solids, is normally detrimental to the stability of ordered states of matter. In this letter we demonstrate that not only is the physics of a stro…
Topological insulator on the kagome lattice
H. -M. Guo, M. Franz
Itinerant electrons in a two-dimensional Kagome lattice form a Dirac semi-metal, similar to graphene. When lattice and spin symmetries are broken by various periodic perturbations…