2 papers
cond-mat.quant-gas2025
Measuring the Chern-Simons invariant in quantum gases
Chang-Rui Yi, Jinlong Yu, Huan Yuan +5
Chern-Simons (CS) invariant is a fundamental topological invariant describing the topological invariance of 3D space based on the Chern-Simons field theory. To date, direct measure…
cond-mat.quant-gas2025
Observation of Kibble-Zurek Behavior across Topological Transitions of a Chern Band in Ultracold Atoms
Huan Yuan, Chang-Rui Yi, Jia-Yu Guo +5
The Kibble-Zurek (KZ) mechanism renders a theoretical framework for elucidating the formation of topological defects across continuous phase transitions. Nevertheless, it is not im…