Jun 20 – 23, 2022
Max Planck Institut für Festkörperforschung
Europe/Berlin timezone

Spin and charge response and pseudogap in the 2D Hubbard model

Jun 22, 2022, 11:15 AM
2D5 (Max Planck Institut für Festkörperforschung)


Max Planck Institut für Festkörperforschung

Keynote Talk / Invited Talk Numerical Approaches to Quantum Materials


Michel Ferrero (Ecole Polytechnique)


I will present recent numerically exact finite-temperature results for the two-dimensional Hubbard model obtained by diagrammatic Monte Carlo. I will show that there are several correlation regimes characterized by different magnetic correlation lengths and interaction strengths. I will discuss the connection between these regimes and the onset of a pseudogap. Finally, I will try to shake hands with ground-state results and discuss how a stripe-ordered ground-state can eventually be recovered at low doping and how it is connected to the fate of the pseudogap at zero temperature.

Primary author

Michel Ferrero (Ecole Polytechnique)


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