Results 11 to 20 of about 13,863,108 (200)
Ising expansion for the Hubbard model [PDF]
Physical Review B, 1995 22 pages, 6 Postscript figures ...
Shi, Zhu-Pei, Singh, Rajiv R. P.
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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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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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The Fractal-Lattice Hubbard Model [PDF]
QuantumHere, we investigate the fractal-lattice Hubbard model using various numerical methods: exact diagonalization, the self-consistent diagonalization of a (mean-field) Hartree-Fock Hamiltonian and state-of-the-art Auxiliary-Field Quantum Monte Carlo.
Monica Conte +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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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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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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Thermodynamics of correlated electrons in a magnetic field
Communications Physics, 2022 The Hofstadter–Hubbard model on 2D square lattices is a paradigmatic model to study the interplay of electron correlations and external magnetic field.
Jixun K. Ding +5 more
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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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