Y. Claveau, B. Arnaud, S. D. Matteo, Mean-field solution of the Hubbard model: the magnetic phase diagram, European Journal of Physics 35 (3) (2014) 035023. doi:10.1088/0143-0807/35/3/035023.Y. Claveau, B. Arnaud, S. D. Matteo, Mean-field solution of the Hubbard model: The ...
New mean field theories of the Hubbard modelTheoretical or Mathematical/ HF calculationshigh-temperature superconductorsHubbard model/ high temperature superconductorsmean field theoriesHubbard modelsquare latticetriangular latticespin-boson slave-fermion mean field theories...
Square lattice Hubbard model is investigated near half-filled in the limit of large U . A slave-fermion scheme is used, where electron operators are replaced by bose operators with auxiliary fermi operators. The ground state by a mean field approximation with RVB order parameter for spin shows ...
extended Bose-Hubbard modelthree-body interactionsGutzwiller ansatzThe zero temperature properties of the generalized Bose-Hubbard model including three-body interactions are studied on a mean-field level. We obtain analytical results using the so-called perturbative mean-field method and more detailed ...
A new mean field theory is proposed for the Mott transition in the Hubbard model based on the slave rotor representation of the electron operator. This theory provides a better description of the role of the long range charge correlation in the Mott insulating state and offers a good estimation...
Pseudogaps in Strongly Correlated Metals: A generalized dynamical mean-field theory approach solution of the weakly doped one-band Hubbard model with repulsive Coulomb interaction on a square lattice with nearest and next nearest neighbour hopping. ... MV Sadovskii,IA Nekrasov,EZ Kuchinskii,... ...
Mean-field model of interaction between bright vortex solitons in Bose-Einstein condensates Using the explicit numerical solution of the axially-symmetric Gross-Pitaevskii equation we study the dynamics of interaction among vortex solitons in a ro... Adhikari,K Sadhan - 《New Journal of Physics》 被...
It is well-known from unrestricted Hartree-Fock computations that the 2DHubbard model does not have homogeneous mean field states in significantregions of parameter space away from half filling. This is incompatible withstandard mean field theory. We present a simple extension of the mean fieldmethod...
摘要: 27aXA-8 Study of the degenerate Hubbard model with the dynamical mean field theory Sakai Shiro , Arita Ryotaro , Aoki Hideo Meeting abstracts of the Physical Society of Japan 59(1-3), 510, 2004-03-03DOI: 10.11316/jpsgaiyo.59.1.3.0_510_1 年份: 2004 ...
In this paper, we study a mean-field spin model with three- and two-body interactions. In a recent paper (Ann Henri Poincaré, 2024) by Contucci, Mingi