标题： 一维光晶格中自旋-3/2费米子的相图 显示英文标题

标题： Phase Diagram of Spin-3/2 Fermions in One Dimensional Optical Lattices

摘要： 我们提出了一项密度矩阵重整化群(DMRG)研究，研究的是描述光学晶格中有效自旋S=3/2费米子的广义Hubbard链。我们确定了SU(4)对称情况下的完整相图，并在单离子各向异性的情况下，根据密度和极化进行分析。我们研究了不同序之间的稳定性和竞争，例如五重态Fulde-Ferrell-Larkin-Ovchinnikov(FFLO)配对、三元组和四元组形成，以及自旋和原子密度波。值得注意的是，在半填充附近，单离子各向异性稳定了一个相关相，该相可以理解为广义的S=2玻色子t-J链。 显示英文摘要

摘要： We present a density matrix renormalization group(DMRG) study of a generalized Hubbard chain describing effective spin S=3/2 fermions in an optical lattice.We determine the full phase diagram for the SU(4) symmetric case, and in the presence of single-ion anisotropy in terms of density and polarization.We investigate the stability and competition between different orders, such as quintet Fulde-Ferrell-Larkin-Ovchinnikov(FFLO) pairing, trion and quartet formation, and spin and atomic density waves.Notably, near half-filling, single-ion anisotropy stabilizes a correlated phase that can be understood in terms of a generalized S=2 bosonic t-J chain.