Dynamical mean-field theory (DMFT) is a successful method to investigate in-teracting lattice fermions. In these lecture notes we present an introduction intothe DMFT for lattice fermions with interaction, disorder and external inhomo-geneous potentials. This formulation is applicable to electrons in...
The dynamical mean-field method is used to formulate a computationally tractable theory of electron-phonon interactions in systems with arbitrary local electron-electron interactions in the physically relevant adiabatic limit of phonon frequency small compared to electron bandwidth or interaction scale. As...
Dynamical mean-field theory is used to study the quantum critical point (QCP) in the doped Hubbard model on a square lattice. The QCP is characterized by a... W Xu,Kotliar,Gabriel,... - 《Physical Review B Condensed Matter & Materials Physics》 被引量: 0发表: 2017年 20pPSB-4 Magnetic...
To analyze the physical properties arising from indirect magnetic exchange between several magnetic adatoms and between complex magnetic nanostructures on metallic surfaces, the real-space extension of dynamical mean-field theory (R-DMFT) appears attractive as it can be applied to systems of almost ...
www.nature.com/scientificreports OPEN Selective orbital reconstruction in tetragonal FeS: A density functional dynamical mean-field theory study received: 17 June 2015 accepted: 17 March 2017 Published: 18 April 2017 Luis Craco1 & Stefano Leoni2 Transport properties of tetragonal iron monosulfide,...
A weak point in previous first-principles studies through density-functional theory is that the calculations are based on a mean-field-like description of the electronic structure, using the local density approximation (LDA) or the generalized gradient approximation. The main criticism to this theory...
We present an analytic derivation of the linear temperature dependence of the inverse static susceptibility χ - 1 ( T , U ) ∼ T - T c ( U ) near the transition from a paramagnetic-to-ferromagnetic correlated metal within the dynamical mean-field theory for the Hubbard model. The ...
2) Mean-field approximation 平均场近似 1. By using the mean-field approximation method,the critical behavior of the mixed-spin XXZ model with DM interaction on the cubic lattice is studied. 利用平均场近似的方法,研究了立方晶格上具有DM相互作用的混合XXZ模型的相变和临界性质。 2. Finally,we ...
We develop a theory for signal propagation in recurrent networks after random initialization using a combination of mean field theory and random matrix theory. To simplify our discussion, we introduce a new RNN cell with a simple gating mechanism that we call the minimalRNN and compare it with ...
dynamical mean field theoryquantum impurity modelequation of motionspectral densityWe review the statistical mechanics approach to the study of the emerging ... AD Martino,M Marsili - 《Journal of Physics A Mathematical & General》 被引量: 111发表: 2006年 The Kondo Lattice Model in Infinite Dimen...