We use the so-called lace expansion of mathematical random walk theory to derive several generalizations of dynamical mean-field theory (DMFT) for strongly correlated electron systems (SCES). DMFT is based on a self-consistence condition, by which a lattice Hamiltonian for SCES is mapped onto ...
Dynamical Mean Field Theory (DMFT) is a successful method to compute the electronic structure of strongly correlated materials, especially when it is combined with density functional theory (DFT). Here, we present an open-source computational package (and a library) combining DMFT with various DFT...
In previous work we undertook systematic local density approxima- tion plus dynamical-mean-field-theory (LDA+DMFT)43 studies of iron-based superconductors, showing how bad-metallicity40 and doping-induced localization-delocalization transition can be understood within a single theoretical picture. ...
We apply the dynamical mean field theory (DMFT) approximation to the real, scalar 蠁quantum field theory. By comparing to lattice Monte Carlo calculations, perturbation theory and standard mean field theory, we test the quality of the approximation in two, three, four and five dimensions. The ...
We present an embedding approach based on localized basis functions which permits an efficient application of the dynamical mean-field theory (DMFT) to inhomogeneous correlated materials, such as semi-infinite surfaces and heterostructures. In this scheme, the semi-infinite substrate leads connected to ...
A mean-field model for the electron glass:一种电子玻璃的平均场模型 热度: What is a particle-conserving Topological Superfluid The fate of Majorana modes beyond mean-field theory 热度: 丹参酮ⅡA在大鼠体内的药代动力学及相关机制研究 热度:
Using dynamical mean-field theory (DMFT) we study a simplified model for heterostructures involving superconductors. The system is driven out of equilibrium by a voltage bias, imposed as an imbalance of chemical potential at the interface. We solve the self-consistent DMFT equations using iterative ...
turbation theory is the Mott-Hubbard metal-insulator transition. 1 In this respect, dynamical mean field the- ory (DMFT) 2,3 was a big step forward to a more thor- ough understanding of this transition. DMFT becomes exact in the limit of high spatial dimensions (d →∞) and already ...
摘要: We report on a quantum-classical simulation of the single-band Hubbard model using two-site dynamical mean-field theory (DMFT). Our approach uses IBM's superconducting qubit chip t... 查看全部>>关键词: quantum simulations strongly correlated electrons dynamical mean-field theory ...
Since the first investigation of the Hubbard model in the limit of infinite dimensions by Metzner and Vollhardt, dynamical mean-field theory (DMFT) has become a very powerful tool for the investigation of lattice models of correlated electrons. In DMFT the lattice model is mapped on an effective...