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The Hubbard Model: A Computational Perspective [PDF]

open access: yesAnnual Review of Condensed Matter Physics, 2022
The Hubbard model is the simplest model of interacting fermions on a lattice and is of similar importance to correlated electron physics as the Ising model is to statistical mechanics or the fruit fly to biomedical science. Despite its simplicity, the model exhibits an incredible wealth of phases, phase transitions, and exotic correlation phenomena ...
Qin, M.   +4 more
openaire   +4 more sources

Fermionization and Hubbard models [PDF]

open access: yesNuclear Physics B, 1998
We introduce a transformation which allows the fermionization of operators of any one-dimensional spin-chain. This fermionization procedure is independent of any eventual integrable structure and is compatible with it. We illustrate this method on various integrable and non-integrable chains, and deduce some general results.
Dargis, P., Maassarani, Z.
openaire   +3 more sources

Ferromagnetism in the Hubbard Model [PDF]

open access: yes, 2001
18 pages, eps-figures included, in: Band-Ferromagnetism, Eds. K. Baberschke, M. Donath, W. Nolting (Springer, Berlin, in press)
Nolting, W.   +3 more
openaire   +2 more sources

The Hubbard Model

open access: yesAnnual Review of Condensed Matter Physics, 2022
The repulsive Hubbard model has been immensely useful in understanding strongly correlated electron systems and serves as the paradigmatic model of the field. Despite its simplicity, it exhibits a strikingly rich phenomenology reminiscent of that observed in quantum materials. Nevertheless, much of its phase diagram remains controversial.
Arovas, Daniel P.   +3 more
openaire   +2 more sources

Dynamic Hubbard Model [PDF]

open access: yesPhysical Review Letters, 2001
Physical Review ...
openaire   +3 more sources

The Landscape of the Hubbard Model [PDF]

open access: yesString Theory and Its Applications, 2011
56 pages, 16 figures; TASI and Chandrasekhar lectures; (v3) expanded discussion of phases with Fermi surfaces; (v5) added section on Mott transition on the triangular ...
openaire   +2 more sources

Pseudofermion dynamical theory for the spin dynamical correlation functions of the half-filled 1D Hubbard model

open access: yesNuclear Physics B, 2016
A modified version of the metallic-phase pseudofermion dynamical theory (PDT) of the 1D Hubbard model is introduced for the spin dynamical correlation functions of the half-filled 1D Hubbard model Mott–Hubbard phase.
J.M.P. Carmelo, T. Čadež
doaj   +1 more source

Itinerant ferromagnetism in narrow-band metals

open access: yesCondensed Matter Physics, 2021
Since its introduction in 1963, the Hubbard model has becomes one of the most popular models used in the literature to study cooperative phenomena in narrow-band metals (ferromagnetism, metal-insulator transitions, charge-density waves, high-Tc ...
P. Farkašovský
doaj   +1 more source

Analyticity in Hubbard Models [PDF]

open access: yesJournal of Statistical Physics, 1999
The Hubbard model describes a lattice system of quantum particles with local (on-site) interactions. Its free energy is analytic when βt is small, or βt^2/U is small; here, βis the inverse temperature, U the on-site repulsion and t the hopping coefficient.
openaire   +2 more sources

Ising expansion for the Hubbard model [PDF]

open access: yesPhysical Review B, 1995
22 pages, 6 Postscript figures ...
Shi, Zhu-Pei, Singh, Rajiv R. P.
openaire   +3 more sources

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