preprintProceedings of the National Academy of SciencesJan 23, 2026GREEN OA

Observation of emergent scaling of spin–charge correlations at the onset of the pseudogap

TCThomas ChalopinPDPetar D. BojovićSWSi WangTFTitus FranzASAritra Sinha

Centre National de la Recherche Scientifique · Université Paris-Saclay · +19 more institutions

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Abstract

In strongly correlated materials, interacting electrons are entangled and form collective quantum states, resulting in rich low-temperature phase diagrams. Notable examples include cuprate superconductors, in which superconductivity emerges at low doping out of an unusual "pseudogap" metallic state above the critical temperature. The Fermi-Hubbard model, describing a wide range of phenomena associated with strong electron correlations, still offers major computational challenges despite its simple formulation. In this context, ultracold atoms quantum simulators have provided invaluable insights into the microscopic nature of correlated quantum states. Here, we use a quantum gas microscope Fermi-Hubbard…

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9
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99.69
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100%
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Authors

15

Topics & keywords

Topics
Keywords
  • Pseudogap
  • Condensed matter physics
  • Physics
  • Hubbard model
  • Superconductivity
  • Quantum critical point
  • Quantum
  • Spin (aerodynamics)
UN Sustainable Development Goals
  • Affordable and clean energy
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