Ground-state properties of hard-core anyons in one-dimensional optical lattices

Abstract

We investigate the ground-state properties of anyons confined in one-dimensional optical lattices with a weak harmonic trap using the exact numerical method based on Jordan-Wigner transformation. It is shown that in the Bose limit ($\chi =1$) and Fermi limit ($\chi =0$) the momentum distributions are symmetric but in between they are asymmetric. It turns out that the origin of asymmetry comes from the fractional statistics that anyons obey. The occupation distribution and the modulus of natural orbitals show crossover behaviours from the Bose limit to the Fermi limit.

5 pages, 4 figures, published version in Phys. Rev. A

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