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Thermodynamics of the metal-insulator transition in the extended Hubbard model from determinantal quantum Monte Carlo by Sushchyev, Alexander; Wessel, Stefan is a scholarly article available to read on EtoBox.

What is Thermodynamics of the metal-insulator transition in the extended Hubbard model from determinantal quantum Monte Carlo about?

Using finite-temperature determinantal quantum Monte Carlo simulations, we examine the thermodynamic properties of the extended Hubbard model on the half-filled square lattice in the Slater regime at intermediate coupling. We consider both the case of nearest-neighbor interactions and long-range Coulomb interactions, for coupling strengths in which the presence of non-local interactions still allows us to perform sign-problem free quantum Monte Carlo simulations. In particular, we assess a recently proposed scenario from variational calculations in terms of a first-order metal-insulator transition in this interaction regime.

Author

Sushchyev, Alexander; Wessel, Stefan

Published

2022

Language

EN