66 citations · 250 across the 14 of their papers we have counts for
14 papers
High second Chern number induced by long-range hopping in a four-dimensional Dirac model
Zheng-Rong Liu, Xiang Liu, Rui Chen +1
Four-dimensional (4D) topological systems provide a promising platform for exploring topological phenomena beyond three dimensions. So far, extensive recent studies on 4D topologic…
Numerical calculation of the -space second Chern number in four dimensions
Xiang Liu, Xiao-Xia Yi, Zheng-Rong Liu +2
We propose an efficient numerical method to compute the -space second Chern number in four-dimensional (4D) topological systems. Our approach employs an adaptive mesh refinement…
Tunable cornerlike states in topological type-II hyperbolic lattices
Zheng-Rong Liu, Tan Peng, Xiang Liu +4
Type-II hyperbolic lattices constitute a new class of hyperbolic structures that are projected onto the Poincaré ring and possess both an inner and an outer boundary. In this work,…
Five-dimensional Floquet topological semimetals with emergent Yang monopoles and linked Weyl surfaces
Zheng-Rong Liu, Rui Chen, Bin Zhou
Recently, Floquet topological matter has attracted significant attention for its potential to reveal novel topological phases inaccessible in static systems. In this paper, we inve…
Structural disorder-induced topological phase transitions in quasicrystals
Tan Peng, Yong-Chen Xiong, Chun-Bo Hua +8
Recently, the structural disorder-induced topological phase transitions in periodic systems have attracted much attention. However, in aperiodic systems such as quasicrystalline sy…
Periodically driven four-dimensional topological insulator with tunable second Chern number
Zheng-Rong Liu, Rui Chen, Bin Zhou
In recent years, Floquet engineering has attracted considerable attention as a promising approach for tuning topological phase transitions. In this work, we investigate the effects…
Four-dimensional Floquet topological insulator with an emergent second Chern number
Zheng-Rong Liu, Rui Chen, Bin Zhou
Floquet topological insulators have been widely investigated in lower-dimensional systems. However, Floquet topological insulators induced by time-periodic driving in higher-dimens…
Higher-order topological insulators in hyperbolic lattices
Zheng-Rong Liu, Chun-Bo Hua, Tan Peng +2
To explore the non-Euclidean generalization of higher-order topological phenomena, we construct a higher-order topological insulator model in hyperbolic lattices by breaking the ti…
Density-driven higher-order topological phase transitions in amorphous solids
Tan Peng, Chun-Bo Hua, Rui Chen +3
Amorphous topological states, which are independent of the specific spatial distribution of microscopic constructions, have gained much attention. Recently, higher-order topologica…
Chern insulator in a hyperbolic lattice
Zheng-Rong Liu, Chun-Bo Hua, Tan Peng +1
Motivated by the recent experimental realizations of hyperbolic lattices in circuit quantum electrodynamics and the research interest in the non-Euclidean generalization of topolog…
Magnon corner states in twisted bilayer honeycomb magnets
Chun-Bo Hua, Feiping Xiao, Zheng-Rong Liu +6
Search for higher-order topological insulators, characterized by topologically protected gapless boundary states of codimension higher than one, in bosonic systems has attracted gr…
Higher-order topological Anderson insulators in quasicrystals
Tan Peng, Chun-Bo Hua, Rui Chen +3
The disorder effects on higher-order topological phases in periodic systems have attracted much attention. However, in aperiodic systems, such as quasicrystalline systems, the inte…
Disorder-induced chiral and helical Majorana edge modes in a two-dimensional Ammann-Beenker quasicrystal
Chun-Bo Hua, Zheng-Rong Liu, Tan Peng +3
Recent research on disorder effects in topological phases in quasicrystalline systems has received much attention. In this work, by numerically computing the (spin) Bott index and…
Topological excitonic corner states and nodal phase in bilayer quantum spin Hall insulators
Zheng-Rong Liu, Lun-Hui Hu, Chui-Zhen Chen +2
Interaction induced topological states remain one of the fascinating phases in condensed matter physics. The exciton condensate has recently sparked renewed interest due to the dis…