Results 61 to 70 of about 6,166 (163)
Physical Review Research, 2023 We explore the nonequilibrium dynamics of a one-dimensional Fermi-Hubbard system as a sensitive testbed for the capabilities of the time-dependent two-particle reduced density matrix (TD2RDM) theory to accurately describe time-dependent correlated ...
Stefan Donsa +6 more
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Scientific Reports, 2017 We study two identical fermions, or two hard-core bosons, in an infinite chain and coupled to phonons by interactions that modulate their hopping as described by the Peierls/Su-Schrieffer-Heeger (SSH) model.
J. Sous +4 more
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Photocontrollable Mixed-Valent States in Platinum-Halide Ladder Compounds
Applied Sciences, 2018 Employing a two-orbital extended Peierls⁻Hubbard model, we demonstrate the photomanipulation of mixed-valent states in platinum-halide ladder compounds. There are two types of interchain valence arrangements, namely in-phase and out-of-phase types.
Jun Ohara, Shoji Yamamoto
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Ultracold Bosons on a Regular Spherical Mesh
Entropy, 2020 Here, the zero-temperature phase behavior of bosonic particles living on the nodes of a regular spherical mesh (“Platonic mesh”) and interacting through an extended Bose-Hubbard Hamiltonian has been studied.
Santi Prestipino
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Exact Results on a Supersymmetric Extended Hubbard Model
, 1995 The two most promising models of correlated electrons in relation with high-T c superconductivity are the Hubbard and t-J models. Both are related to the isotropic spin-1/2 Heisenberg antiferromagnet (XXX model): the Hubbard model via the U → ∞limit and the t-J model by tuning the chemical potential to half-filling.
Essler, F, Korepin, V
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Magnetic supersolid phases of two-dimensional extended Bose–Hubbard model with spin–orbit coupling
New Journal of PhysicsWe investigate the quantum phases and phase transitions for spin–orbit coupled two-species bosons with nearest-neighbor (NN) interaction in a two-dimensional square lattice using inhomogeneous dynamical Guztwiller mean-field method.
Dong-Dong Pu +3 more
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Scaling theory for Mott–Hubbard transitions: I. T = 0 phase diagram of the 1/2-filled Hubbard model
New Journal of Physics, 2020 We present a T = 0 K renormalization group (RG) phase diagram for the electronic Hubbard model in two dimensions on the square lattice at half filling.
Anirban Mukherjee, Siddhartha Lal
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Tunable quantum criticalities in an isospin extended Hubbard model simulator. [PDF]
Nature, 2022 Li Q +15 more
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Frenkel line and the pseudogap: An analogy between classical and electronic fluids
Physical Review ResearchAsymptotically close to critical end points of first-order transitions, maxima in thermodynamic quantities occur along a line called the Widom line, a concept first introduced in classical fluids.
J. Fournier +5 more
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Phase detection with neural networks: interpreting the black box
New Journal of Physics, 2020 Neural networks (NNs) usually hinder any insight into the reasoning behind their predictions. We demonstrate how influence functions can unravel the black box of NN when trained to predict the phases of the one-dimensional extended spinless Fermi–Hubbard
Anna Dawid +4 more
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