Four-dimensional topological Anderson insulator with an emergent second Chern number
R Chen, XX Yi, B Zhou - Physical Review B, 2023 - APS
Four-dimensional (4D) topological insulators, which are impossible in real materials, have
attracted much attention by virtue of the recent progress achieved in quantum simulations of …
attracted much attention by virtue of the recent progress achieved in quantum simulations of …
Yu-shiba-rusinov qubit
Magnetic impurities in s-wave superconductors lead to spin-polarized Yu-Shiba-Rusinov
(YSR) in-gap states. Chains of magnetic impurities offer one of the most viable routes for the …
(YSR) in-gap states. Chains of magnetic impurities offer one of the most viable routes for the …
Lifshitz transitions, type-II Dirac and Weyl fermions, event horizon and all that
GE Volovik, K Zhang - Journal of Low Temperature Physics, 2017 - Springer
The type-II Weyl and type-II Dirac points emerge in semimetals and also in relativistic
systems. In particular, the type-II Weyl fermions may emerge behind the event horizon of …
systems. In particular, the type-II Weyl fermions may emerge behind the event horizon of …
Exact solution of the single impurity problem in nonreciprocal lattices: Impurity-induced size-dependent non-Hermitian skin effect
Y Liu, Y Zeng, L Li, S Chen - Physical Review B, 2021 - APS
Non-Hermitian nonreciprocal systems are known to be extremely sensitive to boundary
conditions, exhibiting diverse localizing behaviors and spectrum structures when …
conditions, exhibiting diverse localizing behaviors and spectrum structures when …
Momentum-space structure of surface states in a topological semimetal with a nexus point of Dirac lines
Three-dimensional topological semimetals come in different variants, either containing Weyl
points or Dirac lines. Here we describe a more complicated momentum-space topological …
points or Dirac lines. Here we describe a more complicated momentum-space topological …
Higher-order topological Anderson insulator on the Sierpiński lattice
Disorder effects on topological materials in integer dimensions have been extensively
explored in recent years. However, its influence on topological systems in fractional …
explored in recent years. However, its influence on topological systems in fractional …
Topological Anderson insulator phase in a quasicrystal lattice
Motivated by the recent experimental realization of the topological Anderson insulator and
research interest on the topological quasicrystal lattices, we investigate the effects of …
research interest on the topological quasicrystal lattices, we investigate the effects of …
Disorder-induced Majorana zero modes in a dimerized Kitaev superconductor chain
Motivated by the recent experimental observation of the topological Anderson insulator in
disordered atomic wires based on the Su-Schrieffer-Heeger (SSH) model, we study disorder …
disordered atomic wires based on the Su-Schrieffer-Heeger (SSH) model, we study disorder …
Corner states, hinge states, and Majorana modes in SnTe nanowires
SnTe materials are one of the most flexible material platforms for exploring the interplay of
topology and different types of symmetry breaking. We study symmetry-protected topological …
topology and different types of symmetry breaking. We study symmetry-protected topological …
Impurity-induced excitations in a topological two-dimensional ferromagnet/superconductor van der Waals moiré heterostructure
The emergence of a topological superconducting state in van der Waals heterostructures
provides a new platform for exploring novel strategies to control topological …
provides a new platform for exploring novel strategies to control topological …