Ultralong-range order in the Fermi-Hubbard model with long-range interactions

Article

关键词: MEAN-FIELD THEORY;    POLAR-MOLECULES;    QUANTUM GASES;    DIMENSIONS;    STATE;   

DOI  :  10.1103/PhysRevB.92.081106

来源: SCIE

【 摘 要 】

We use the dual boson approach to reveal the phase diagram of the Fermi-Hubbard model with long-range dipole-dipole interactions. By using a large-scale finite-temperature calculation on a 64 x 64 square lattice we demonstrate the existence of a novel phase, possessing an ultralong-range order. The fingerprint of this phase-the density correlation function-features a nontrivial behavior on a scale of tens of lattice sites. We study the properties and the stability of the ultralong-range-ordered phase, and show that it is accessible in modern experiments with ultracold polar molecules and magnetic atoms.

【 授权许可】

Free