Yu, Y (reprint author), Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China.
[Yu, Yue] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
; [Yu, Yue] Fudan Univ, Ctr Field Theory & Particle Phys, Shanghai 200433, Peoples R China
; [Yu, Yue] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
; [Luo, Zhuxi] Fudan Univ, Sch Econ, Shanghai 200433, Peoples R China
; [Wang, Ziqiang] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
We show that the dipole-dipole coupling between Wannier modes in cigar-shaped Bose-Einstein condensates (BECs) is significantly enhanced while the short-range coupling is strongly suppressed. As a result, the dipole-dipole interaction can become the dominant interaction between ultracold alkali Bose atoms. In the long length limit of a cigar-shaped BEC, the resulting effective one-dimensional models possess an effective inverse squared interacting potential, the Calogero-Sutherland potential, which plays a fundamental role in many fields of contemporary physics; but its direct experimental realization has been a challenge for a long time. We propose to realize the Calogero-Sutherland model in ultracold alkali Bose atoms and study the effects of the dipole-dipole interaction.
Yu, Y,Luo, ZX,Wang, ZQ. Effects of dipole-dipole interaction between cigar-shaped BECs of cold alkali atoms: towards inverse-squared interactions[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2014,26(30):305402.