2001/08/31 by Fei Zhou · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum many-body systems #Topological Materials and Phenomena #cond-mat.stat-mech #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1142/s0217979203018399
published as Int.Jour.Mod.Phys.B17(No.14),2643-2698(2003) · 30 pages, 13 figs included. to appear in Int. Jour. Mod. Phys. A
arxiv created 2002/12/19 · openalex publication_date 2003/06/10 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We review some recent results on discrete symmetries and topological order in spinor Bose–Einstein condensates (BECs) of 23 Na. For spin one bosons with two-body scatterings dominated by a total spin equal to two channel, the BECs are in quantum spin nematic states at a low density limit. We study spin correlations in condensates at different limits and analyze hidden symmetries using a non-perturbative approach developed recently. Furthermore we investigate the influence of hidden Z 2 symmetries and U(1) quantum orders in symmetry partially restored states, particularly the effects on topological excitations.