Pseudogap in a Fermi-Hubbard quantum simulator

arXiv:2509.18075 · cond-mat.quant-gas, cond-mat.str-el, physics.atom-ph, quant-ph · Submitted 2025-09-22 · Read on arXiv

cond-mat.quant-gas, cond-mat.str-el, physics.atom-ph, quant-ph

Submitted: 2025-09-22

Updated: 2025-09-22

Comments: 7+20 pages, 4+10 figures

Journal ref: Nature 656 (2026), 602-608

DOI: 10.1038/s41586-026-10875-z

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Hubbard Model — 48× in this paper · explained in 3 episodes
• Calibration — 24× in this paper · explained in 7 episodes
• Fidelity — 8× in this paper · explained in 2 episodes
• Ab Initio — 4× in this paper · explained in 1 episode
• Accuracy — 4× in this paper · explained in 1 episode
• Alignment — 3× in this paper · explained in 1 episode
• Exact Diagonalization — 3× in this paper
• Antiferromagnetic Correlation — 2× in this paper · explained in 1 episode
• Antiferromagnetism — 2× in this paper · explained in 1 episode
• National Science Foundation — 2× in this paper
• Robustness — 2× in this paper · explained in 5 episodes
• Ancilla Qubits — 1× in this paper · explained in 1 episode
• Anisotropy — 1× in this paper · explained in 3 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Benchmark — 1× in this paper · explained in 2 episodes
• Core — 1× in this paper · explained in 2 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• First-Order Transition — 1× in this paper · explained in 2 episodes
• Frequency Dependence — 1× in this paper · explained in 2 episodes
• Frustration — 1× in this paper · explained in 2 episodes
• Metallicity — 1× in this paper · explained in 3 episodes
• Phase Transitions — 1× in this paper · explained in 2 episodes
• Spectral Gap — 1× in this paper · explained in 5 episodes
• Symmetry Breaking — 1× in this paper · explained in 3 episodes
• Topological Order — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Observation of Magnon-Polarons in the Fermi-Hubbard Model
• Observation of emergent scaling of spin-charge correlations at the onset of the pseudogap
• Forestalled Phase Separation as the Precursor to Stripe Order
• Spectroscopy of Hubbard-Mott excitons and their ro-vibrational excitations
• High-fidelity collisional quantum gates with fermionic atoms

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