Topological quantum matter with cold atoms

DW Zhang, YQ Zhu, YX Zhao, H Yan… - Advances in Physics, 2018‏ - Taylor & Francis
This is an introductory review of the physics of topological quantum matter with cold atoms.
Topological quantum phases, originally discovered and investigated in condensed matter …

Topological carbon materials: A new perspective

Y Chen, Y **e, X Yan, ML Cohen, S Zhang - Physics Reports, 2020‏ - Elsevier
Carbon has numerous one-dimensional (1D), two-dimensional (2D), and three-dimensional
(3D) allotropic structures. The study of carbon materials has long been a major focus of …

Wallpaper fermions and the nonsymmorphic Dirac insulator

BJ Wieder, B Bradlyn, Z Wang, J Cano, Y Kim… - Science, 2018‏ - science.org
Materials whose gapless surface states are protected by crystal symmetries include mirror
topological crystalline insulators and nonsymmorphic hourglass insulators. There exists only …

Observation of bulk states and spin-polarized topological surface states in transition metal dichalcogenide Dirac semimetal candidate

B Ghosh, D Mondal, CN Kuo, CS Lue, J Nayak, J Fujii… - Physical Review B, 2019‏ - APS
We predict NiTe 2 to be a type-II Dirac semimetal based on ab initio calculations and explore
its bulk and spin-polarized surface states using spin-and angle-resolved photoemission …

Prediction of triple point fermions in simple half-Heusler topological insulators

H Yang, J Yu, SSP Parkin, C Felser, CX Liu, B Yan - Physical review letters, 2017‏ - APS
We predict the existence of triple point fermions in the band structure of several half-Heusler
topological insulators by ab initio calculations and the Kane model. We find that many half …

Phononic higher-order nodal point in two dimensions

WW Yu, Y Liu, W Meng, H Liu, J Gao, X Zhang, G Liu - Physical Review B, 2022‏ - APS
Fermionic quasiparticles in solids have attracted tremendous attention in the last decades.
The conceptual framework of quasiparticles has recently been extended to bosonic systems …

Topological triply degenerate points induced by spin-tensor-momentum couplings

H Hu, J Hou, F Zhang, C Zhang - Physical review letters, 2018‏ - APS
The recent discovery of triply degenerate points (TDPs) in topological materials has opened
a new perspective toward the realization of novel quasiparticles without counterparts in …

Nonlinear photoconductivities and quantum geometry of chiral multifold fermions

HC Hsu, JS You, J Ahn, GY Guo - Physical Review B, 2023‏ - APS
Chiral multifold fermions are quasiparticles that appear only in chiral crystals such as
transition metal silicides in the cubic B20 structure (ie, the CoSi family), and they may show …

Optical response of two-dimensional Dirac materials with a flat band

CD Han, YC Lai - Physical Review B, 2022‏ - APS
Two-dimensional Dirac materials with a flat band have been demonstrated to possess a
plethora of unusual electronic properties, but the optical properties of these materials are …

Chirality flip of Weyl nodes and its manifestation in strained

V Könye, A Bouhon, IC Fulga, RJ Slager… - Physical Review …, 2021‏ - APS
Due to their topological charge, or chirality, the Weyl cones present in topological
semimetals are considered robust against arbitrary perturbations. One well-understood …