42 citations · 135 across the 6 of their papers we have counts for
6 papers
Discrete time crystals enforced by Floquet-Bloch scars
Biao Huang, Tsz-Him Leung, Dan Stamper-Kurn +1
We analytically identify a new class of quantum scars protected by spatiotemporal translation symmetries, dubbed Floquet-Bloch scars. They distinguish from previous (quasi-)static…
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…
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…
Spatial Coherence of a Strongly Interacting Bose Gas in the Trimerized Kagome Lattice
Thomas H. Barter, Tsz-Him Leung, Masayuki Okano +3
We produce a trimerized kagome lattice for ultracold atoms using an optical superlattice formed by overlaying triangular lattices generated with two colors of light at a 2:1 wavele…
Mean-field scaling of the superfluid to Mott insulator transition in a 2D optical superlattice
Claire K. Thomas, Thomas H. Barter, Tsz-Him Leung +6
The mean-field treatment of the Bose-Hubbard model predicts properties of lattice-trapped gases to be insensitive to the specific lattice geometry once system energies are scaled b…
Signatures of spatial inversion asymmetry of an optical lattice observed in matter-wave diffraction
C. K. Thomas, T. H. Barter, T. -H. Leung +2
The structure of a two-dimensional honeycomb optical lattice potential with small inversion asymmetry is characterized using coherent diffraction of Rb atoms. We demonstrate…