The material realization of charge-4e/6e superconductivity (SC) is a big challenge. Here, we
propose to realize charge-4e SC in maximally-twisted homobilayers, such as 45∘-twisted …

We study the properties of a weakly interacting Bose-Einstein condensate (BEC) in a flat
band lattice system by using the multiband Bogoliubov theory and discover fundamental …

We analyze the quantum phase diagram of the Holstein-Hubbard model using an
asymptotically exact strong coupling expansion. We find all sorts of interesting phases …

We report the momentum-resolved measurement of Bloch bands in an optical Lieb lattice for
a Bose-Einstein condensate (BEC). A BEC in the lattice is transported to a desired …

We have developed a tensor network approach to the two-dimensional fully frustrated
classical XY spin model on the kagome lattice, and clarified the nature of the possible phase …

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 placing a Bose …

The quantum geometry of Bloch states fundamentally affects a wide range of physical
phenomena. The quantum Hall effect, for example, is governed by the Chern number, and …

Engineering surfaces and interfaces of materials promises great potential in the field of
heterostructures and quantum matter designers, with the opportunity to drive new many …

We describe tunable optical sawtooth and zigzag lattices for ultracold atoms. Making use of
the superlattice generated by commensurate wavelengths of light beams, tunable …

Topological states of matter are peculiar quantum phases showing different edge and bulk
transport properties connected by the bulk-boundary correspondence. While noninteracting …