Quantum simulation of the Hubbard model with ultracold fermions in optical lattices

Abstract : Ultracold atomic gases provide a fantastic platform to implement quantum simulators and investigate a variety of models initially introduced in condensed matter physics or other areas. One of the most promising applications of quantum simulation is the study of strongly-correlated Fermi gases, for which exact theoretical results are not always possible with state-of-the-art approaches. Here, we review recent progress of the quantum simulation of the emblematic Fermi-Hubbard model with ultracold atoms. After introducing the Fermi-Hubbard model in the context of condensed matter, its implementation in ultracold atom systems, and its phase diagram, we review landmark experimental achievements, from the early observation of the onset of quantum degeneracy and superfluidity to demonstration of the Mott insulator regime and the emergence of long-range anti-ferromagnetic order. We conclude by discussing future challenges, including the possible observation of high-Tc superconductivity, transport properties, and the interplay of strong correlations and disorder or topology.
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https://hal-polytechnique.archives-ouvertes.fr/hal-01866079
Contributor : Laurent Sanchez-Palencia <>
Submitted on : Wednesday, January 2, 2019 - 3:04:30 PM
Last modification on : Wednesday, March 27, 2019 - 4:02:05 PM
Long-term archiving on : Wednesday, April 3, 2019 - 3:27:30 PM

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  • HAL Id : hal-01866079, version 4
  • ARXIV : 1809.00571

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Leticia Tarruell, Laurent Sanchez-Palencia. Quantum simulation of the Hubbard model with ultracold fermions in optical lattices. Comptes Rendus Physique, Elsevier Masson, 2018, 19, pp.365-393. ⟨hal-01866079v4⟩

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