2013/11/30 by Anne E. B. Nielsen, Germán Sierra, J. I. Cirac +1 · 1 citation
Mathematics · Physics and Astronomy · #Antiferromagnetism #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Fermi Gamma-ray Space Telescope #Ground state #Hubbard model #Lattice (music) #Mathematics #Optical lattice #Physics #Quantum #Quantum many-body systems #Quantum mechanics #Quantum tunnelling #Superconductivity #Topological Materials and Phenomena #Topology (electrical circuits) #Ultracold atom #cond-mat.quant-gas #cond-mat.str-el #quant-ph
paper · pdf · doi:10.1103/physreva.90.013606
published as Phys. Rev. A 90, 013606 (2014) · 18 pages, 10 figures. This article provides the full analysis of a scheme proposed in Nat. Commun. 4, 2864 (2013). v2: accepted version
arxiv created 2014/06/24 · openalex publication_date 2014/07/09 · arxiv updated 2014/07/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present a scheme to implement a Fermi-Hubbard-like model in ultracold atoms in optical lattices and analyze the topological features of its ground state. In particular, we show that the ground state for appropriate parameters has a large overlap with a lattice version of the bosonic Laughlin state at filling factor one-half. The scheme utilizes laser assisted and normal tunneling in a checkerboard optical lattice. The requirements on temperature, interactions, and hopping strengths are similar to those needed to observe the N'eel antiferromagnetic ordering in the standard Fermi-Hubbard model in the Mott insulating regime.