We apply the bosonization technique to derive the phase diagram of a balanced unit density two-component dipolar Fermi gas in a one dimensional lattice geometry. The considered interaction processes are of the usual contact and dipolar long-range density-density type together with peculiar correlated hopping terms which can be generated dynamically. Rigorous bounds for the transition lines are obtained in the weak coupling regime. In addition to the standard bosonization description, we derive the low energy phase diagram taking place when part of the interaction is embodied non-perturbatively in the single component Hamiltonians. In this case the Luttinger liquid regime is shown to become unstable with respect to the opening of further gapped phases, among which insulating bond ordered wave and Haldane phases, the latter with degenerate edge modes.
Low energy quantum regimes of 1D dipolar Hubbard model with correlated hopping / Fazzini, S; Barbiero, L; Montorsi, A. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 841(2017), p. 012016. [10.1088/1742-6596/841/1/012016]
|Titolo:||Low energy quantum regimes of 1D dipolar Hubbard model with correlated hopping|
|Data di pubblicazione:||2017|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1088/1742-6596/841/1/012016|
|Appare nelle tipologie:||1.1 Articolo in rivista|