Hidden magnetism in periodically modulated one dimensional dipolar fermions

2016/07/31 by S. Fazzini, S Fazzini, A Montorsi +5
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Dipole #Fermi Gamma-ray Space Telescope #Fermion #Lattice (music) #Magnetism #Quantum many-body systems #Realization (probability) #Spin (aerodynamics) #Topological Materials and Phenomena #Ultracold atom #cond-mat.quant-gas #cond-mat.str-el

paper · pdf · doi:10.1088/1367-2630/aa9037

published as New J. Phys. 19 (2017) 123008

openalex created_date 2016/08/23 · openalex publication_date 2017/10/02 · arxiv created 2017/12/07 · arxiv updated 2017/12/08 · openalex updated_date 2026/08/05

Abstract

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.

Citations

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