42 citations · 71 across the 2 of their papers we have counts for
2 papers
cond-mat.quant-gas2021★ 29 cited
Direct Geometric Probe of Singularities in Band Structure
Charles D. Brown, Shao-Wen Chang, Malte N. Schwarz +5
The band structure of a crystal may have points where two or more bands are degenerate in energy and where the geometry of the Bloch state manifold is singular, with consequences f…
cond-mat.quant-gas2020★ 42 cited
Interaction-Enhanced Group Velocity of Bosons in the Flat Band of an Optical Kagome Lattice
Tsz-Him Leung, Malte N. Schwarz, Shao-Wen Chang +3
Geometric frustration of particle motion in a kagome lattice causes the single-particle band structure to have a flat s-orbital band. We probe this band structure by exciting a Bos…