TY - Front. Phys. A1 - Zhi Lin, Jun Zhang, Ying Jiang T1 - Analytical approach to quantum phase transitions of ultracold Bose gases in bipartite optical lattices using the generalized Green’s function method Y1 - 2018-08-07 JF - Frontiers of Physics JO - Front. Phys. SP - 136401 EP - VL - 13 IS - 4 UR - https://journal.hep.com.cn/fop N1 - 10.1007/s11467-018-0751-9 ER -