Results 11 to 20 of about 19,877 (264)
Ferromagnetism in the Hubbard Model [PDF]
, 2001 18 pages, eps-figures included, in: Band-Ferromagnetism, Eds. K. Baberschke, M. Donath, W. Nolting (Springer, Berlin, in press)
Nolting, W. +3 more
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Interaction Quench in the Hubbard Model [PDF]
Physical Review Letters, 2008 Final version as ...
Moeckel, M., Kehrein, S.
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Effective hopping in holographic Bose and Fermi-Hubbard models
Journal of High Energy Physics, 2019 In this paper, we analyze a proposed gravity dual to a SU(N) Bose-Hubbard model, as well as construct a holographic dual of a SU(N) Fermi-Hubbard model from D-branes in string theory. In both cases, the SU(N) is dynamical, i.e.
Mitsutoshi Fujita +3 more
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Quantum fluctuations approach to the nonequilibrium GW approximation
Condensed Matter Physics, 2022 The quantum dynamics of fermionic or bosonic many-body systems following external excitation can be successfully studied using two-time nonequilibrium Green's functions (NEGF) or single-time reduced density matrix methods.
E. Schroedter, J.-P. Joost, M. Bonitz
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The Landscape of the Hubbard Model [PDF]
String 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 ...
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Nuclear 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
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Itinerant ferromagnetism in narrow-band metals
Condensed 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
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Analyticity in Hubbard Models [PDF]
Journal 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.
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Annual 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
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