6 papers
Geometric Bloch oscillations and transverse displacement in flat band systems
Jing-Xin Liu, Giandomenico Palumbo, Marco Di Liberto
We investigate transport phenomena and dynamical effects in flat bands where the band dispersion plays no role. We show that wavepackets in geometrically non-trivial flat bands can…
Proposal for realizing and probing topological crystalline insulators in optical lattices
Jing-Xin Liu, Jian-Te Wang, Shi-Liang Zhu
We develop a lattice model which exhibits topological transitions from topological insulators to mirror symmetry-protected topological crystalline insulators by introducing a…
Floquet Amorphous Topological Orders in a One-dimensional Rydberg Glass
Peng He, Jing-Xin Liu, Hong Wu +1
The topological orders in amorphous systems that lack crystalline symmetry have gained considerable attention recently. Here we propose the Floquet amorphous topological matter, am…
Detecting degenerate bands topological invariants in optical lattice
Jing-Xin Liu, Jian-Te Wang, Hai-Tao Ding
In this paper, we present a novel experimental approach for simulating and detecting topological invariants using ultracold fermions confined in two-dimensional hexagonal optical l…
Realizing and detecting Stiefel-Whitney insulators in an optical Raman lattice
Jian-Te Wang, Jing-Xin Liu, Hai-Tao Ding +1
We propose a feasible scheme to realize a four-band Stiefel-Whitney insultor (SWI) with spin-orbit coupled ultracold atoms in an optical Raman lattice. Four selected spin states ar…
Non-Abelian quantum geometric tensor in degenerate topological semimetals
Hai-Tao Ding, Chang-Xiao Zhang, Jing-Xin Liu +3
The quantum geometric tensor (QGT) characterizes the complete geometric properties of quantum states, with the symmetric part being the quantum metric, and the antisymmetric part b…