The experimental realization of time-dependent ultracold lattice systems has paved the way towards the implementation of new Hubbard-like Hamiltonians. We show that in a one-dimensional two-components lattice dipolar Fermi gas the competition between long range repulsion and correlated hopping induced by periodically modulated on-site interaction allows for the formation of hidden magnetic phases, with degenerate protected edge modes. The magnetism, characterized solely by string-like nonlocal order parameters, manifests in the charge and/or in the spin degrees of freedom. Such behavior is enlighten by employing Luttinger liquid theory and numerical methods. The range of parameters for which hidden magnetism is present can be reached by means of the currently available experimental setups and probes.
Hidden magnetism in periodically modulated one dimensional dipolar fermions / Fazzini, Serena; Montorsi, Arianna; Roncaglia, Marco; Barbiero, Luca. - In: NEW JOURNAL OF PHYSICS. - ISSN 1367-2630. - ELETTRONICO. - 19(2017), pp. 123008-1-123008-8. [10.1088/1367-2630/aa9037]
|Titolo:||Hidden magnetism in periodically modulated one dimensional dipolar fermions|
|Data di pubblicazione:||2017|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1088/1367-2630/aa9037|
|Appare nelle tipologie:||1.1 Articolo in rivista|