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cond-mat.str-el2026
Spin and Charge Conductivity in the Square Lattice Fermi-Hubbard Model
Linh Pham, Ehsan Khatami
Dynamical properties are notoriously difficult to compute in numerical treatments of the Fermi-Hubbard model, especially in two spatial dimensions. However, they are essential in p…
cond-mat.str-el2025
Finite-Temperature Kinetic Ferromagnetism in the Square Lattice Hubbard Model
Robin C. Newby, Ehsan Khatami
While the exact phase diagram of the Fermi-Hubbard model remains poorly understood despite decades of progress, nearly 60 years ago, Nagaoka proved that a single dopant in an other…
cond-mat.str-el2025
Autoregressive neural quantum states of Fermi Hubbard models
Eduardo Ibarra-GarcÃa-Padilla, Hannah Lange, Roger G Melko +4
Neural quantum states (NQS) have emerged as a powerful ansatz for variational quantum Monte Carlo studies of strongly-correlated systems. Here, we apply recurrent neural networks (…