5 papers
Fragile topology in line-graph lattices with two, three, or four gapped flat bands
Christie S. Chiu, Da-Shuai Ma, Zhi-Da Song +2
The geometric properties of a lattice can have profound consequences on its band spectrum. For example, symmetry constraints and geometric frustration can give rise to topologicial…
Spin-Orbit-Induced Topological Flat Bands in Line and Split Graphs of Bipartite Lattices
Da-Shuai Ma, Yuanfeng Xu, Christie S. Chiu +4
Topological flat bands, such as the band in twisted bilayer graphene, are becoming a promising platform to study topics such as correlation physics, superconductivity, and transpor…
Classifying Snapshots of the Doped Hubbard Model with Machine Learning
Annabelle Bohrdt, Christie S. Chiu, Geoffrey Ji +6
Quantum gas microscopes for ultracold atoms can provide high-resolution real-space snapshots of complex many-body systems. We implement machine learning to analyze and classify suc…
String patterns in the doped Hubbard model
Christie S. Chiu, Geoffrey Ji, Annabelle Bohrdt +6
Understanding strongly correlated quantum many-body states is one of the most difficult challenges in modern physics. For example, there remain fundamental open questions on the ph…
Implementation of a stable, high-power optical lattice for quantum gas microscopy
A. Mazurenko, S. Blatt, F. Huber +5
We describe the design and implementation of a stable high-power 1064 nm laser system to generate optical lattices for experiments with ultracold quantum gases. The system is based…