2 papers
cond-mat.quant-gas2020
Bose-Einstein condensates in an eightfold symmetric optical lattice
Zhen-Xia Niu, Yonghang Tai, Junsheng Shi +1
We investigate the properties of Bose-Einstein condensates (BECs) in a two-dimensional quasi-periodic optical lattice (OL) with eightfold rotational symmetry by numerically solving…
cond-mat.quant-gas2019
Emergence and stability of spontaneous vortex lattices in exciton-polariton condensates
F. X. Sun, Z. X. Niu, Q. H. Gong +2
The spontaneous formation of lattice structure of quantized vortices is a characteristic feature of superfluidity in closed systems under thermal equilibrium. In exciton-polariton…