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  1. Aug 25, 2023Thouless pumping represents a powerful concept to probe quantized topological invariants in quantum systems. We explore this mechanism in a generalized Rice-Mele Fermi-Hubbard model characterized by the presence of competing onsite and intersite interactions. Contrary to recent experimental and theoretical results, showing a breakdown of quantized pumping induced by the onsite repulsion, we ...
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  3. quantum-journal.org

    Mar 14, 2024Stabilization of Hubbard-Thouless pumps through nonlocal fermionic repulsion. Javier Argüello-Luengo 1, Manfred J. Mark 2,3, Francesca Ferlaino 2,3, Maciej Lewenstein 1,4, Luca Barbiero 5, and Sergi Julià-Farré 1. 1 ICFO - Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Av. Carl Friedrich Gauss 3, 08860 Castelldefels (Barcelona), Spain
  4. nonlocal fermionic interactions can be efficiently engineered in quantum simulators made of mag-netic atoms [46,47]. To this end, we study Thouless pumps [Fig.1(b)] in a generalized Rice-Mele model with onsite U and nearest-neighbor (NN) Vinteractions, i.e., the Rice-Mele extended Fermi-Hubbard model sketched in Fig.1(a) using
  5. Stabilization of Hubbard-Thouless pumps through nonlocal fermionic repulsion Javier Arguello-Luengo¨ ,1 ManfredJ.Mark ,2,3 FrancescaFerlaino ,2,3 Maciej Lewenstein ,1,4 Luca Barbiero ,5 and Sergi Juli`a-Farr´e 1, ∗ 1ICFO - Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Av. Carl Friedrich Gauss 3, 08860 Castelldefels (Barcelona), Spain
  6. researchgate.net

    Aug 25, 2023Stabilization of Hubbard-Thouless pumps through nonlocal fermionic repulsion Javier Arg¨ uello-Luengo , 1 Manfred J. Mark , 2, 3 F rancesca F erlaino , 2, 3 Maciej Lewenstein , 1, 4 Luca Barbiero ...
  7. researchgate.net

    Mar 14, 2024PDF | Thouless pumping represents a powerful concept to probe quantized topological invariants in quantum systems. We explore this mechanism in a... | Find, read and cite all the research you need ...
  8. inspirehep.net

    Aug 25, 2023We explore this mechanism in a generalized Rice-Mele Fermi-Hubbard model characterized by the presence of competing onsite and intersite interactions. Contrary to recent experimental and theoretical results, showing a breakdown of quantized pumping induced by the onsite repulsion, we prove that sufficiently large intersite interactions allow ...
  9. semanticscholar.org

    FIG. 1. (a) Rice-Mele extended Fermi-Hubbard model. (b) Thouless pump encircling the singularity (δ,∆) = (0, 0). (c) Sketch of the adiabatic transport properties in the interacting U − V plane, for fixed δ0 = 0.9J, ∆0 = J/2, TJ = 50. (d) Expected phases during a Thouless pump. Note that U (V ) can prevent the interaction-induced CDW (MI) order that can break the pump at θ = 0 (θ = π ...
  10. semanticscholar.org

    FIG. 4. Accuracy of Thouless pumps (iTEBD) as a function of the nonlocal interaction V/J and at different cycle numbers C, for fixed U = 8J and ∆0 = J/2. We only observe quantized pumps independent of C around the narrow region where the groundstate of the J −U −V model is the spontaneous BOW phase (gray shaded area, extracted from Ref. [56]), as can be more clearly seen with the inset ...

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