Bose–Einstein condensates in an eightfold symmetric optical lattice
Niu Zhen-Xia1, Tai Yong-Hang2, Shi Jun-Sheng2, Zhang Wei1, 3, †
       

Spatial distributions of particle density |ψ0|2 (top row) and phase θ (bottom row) of the ground state of a rotating BEC in the combined potential of harmonic trap and quasi-periodic OL. The rotating frequency is (a) Ω = 0, (b) Ω = 0.05, and (c) Ω = 0.1. Other parameters used are ωr′=0.1 , V0′=−4 , and g = 50.