2003/02/28 by Congjun Wu, Jiangping Hu, Jiang-ping Hu +1 · 329 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Lattice (music) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum, superfluid, helium dynamics #Singlet state #Statistical physics #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.91.186402
published in Physical Review Letters 91(18), 186402 (American Physical Society) · 5 pages, 1 figs, more references added
arxiv created 2003/08/29 · openalex publication_date 2003/10/28 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The spin-3/2 fermion models with contact interactions have a generic SO5 symmetry without any fine-tuning of parameters. Its physical consequences are discussed in both the continuum and lattice models. A Monte Carlo algorithm free of the sign problem at any doping and lattice topology is designed when the singlet and quintet interactions satisfy U0< or = U2< or = -3/5 U0 (U0< or = 0), thus making it possible to study different competing orders with high numerical accuracy. This model can be accurately realized in ultracold atomic systems.