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arXiv · 1704.07197

Strongly repulsive anyons in one dimension

Florian Lange·Satoshi Ejima·Holger Fehske
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Abstract

To explore the static properties of the one-dimensional anyon-Hubbard model for a mean density of one particle per site, we apply perturbation theory with respect to the ratio between kinetic energy and interaction energy in the Mott insulating phase. The strong-coupling results for the ground-state energy, the single-particle excitation energies, and the momentum distribution functions up to 6th order in hopping are benchmarked against the numerically exact (infinite) density-matrix renormalization group technique. Since these analytic expressions are valid for any fractional phase $θ$ of anyons, they will be of great value for a sufficiently reliable analysis of future experiments, avoiding extensive and costly numerical simulations.

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Florian Lange, Satoshi Ejima, Holger Fehske. 2017-06-26. Strongly repulsive anyons in one dimension. https://doi.org/10.1103/physreva.95.063621

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