i QIST : An open source continuous-time quantum Monte Carlo impurity solver toolkit
Description
This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018) Abstract Quantum impurity solvers have a broad range of applications in theoretical studies of strongly correlated electron systems. Especially, they play a key role in dynamical mean-field theory calculations of correlated lattice models and realistic materials. Therefore, the development and implementation of efficient quantum impurity solvers is an important task. In this paper, we present an open source interacting quantum impurity solver toolkit (dubbed iQIST). This package contains several ... Title of program: iQIST Catalogue Id: AEWQ_v1_0 Nature of problem Quantum impurity models were originally proposed to describe magnetic impurities in metallic hosts. In these models, the Coulomb interaction acts between electrons occupying the orbitals of the impurity atom. Electrons can hop between the impurity and the host, and in an action formulation, this hopping is described by a time-dependent hybridization function. Nowadays quantum impurity models have a broad range of applications, from the description of heavy fermion systems, and Kondo insulators, ... Versions of this program held in the CPC repository in Mendeley Data AEWQ_v1_0; iQIST; 10.1016/j.cpc.2015.04.020