Fate of moiré flat bands for a weakly repulsive Bose-Einstein condensate in one-dimensional $\mathcal{P}\mathcal{T}$-symmetric bichromatic optical lattices

Enhong Cheng, Yu Tan, Yanzhen Xu +1

One-dimensional (1D) superlattices provide one simplified platform for exploring moiré physics from a low-dimensional perspective, with the ratio of lattice constants playing a rol…