Polar bosons in one-dimensional disordered optical lattices

Article

关键词: MATRIX RENORMALIZATION-GROUP;    STAGGERED MAGNETIC-FIELD;    BOSE-EINSTEIN CONDENSATE;    SPIN-1 XXZ CHAINS;    ANDERSON LOCALIZATION;    QUANTUM SPIN;    STATE;    TRANSITIONS;    DIFFUSION;    FERMIONS;   

DOI  :  10.1103/PhysRevB.87.195101

来源: SCIE

【 摘 要 】

We analyze the effects of disorder and quasidisorder on the ground-state properties of ultracold polar bosons in optical lattices. We show that the interplay between disorder and intersite interactions leads to rich phase diagrams. A uniform disorder leads to a Haldane-insulator phase with finite parity order, whereas the density-wave phase becomes a Bose glass at very weak disorder. For quasidisorder, the Haldane insulator connects with a gapped generalized incommensurate density wave without an intermediate critical region.

【 授权许可】

Free