Ontology highlight
ABSTRACT:
SUBMITTER: Pavlyukh Y
PROVIDER: S-EPMC5428253 | biostudies-literature | 2017 Mar
REPOSITORIES: biostudies-literature
Scientific reports 20170329 1
In a typical scenario the diagrammatic many-body perturbation theory generates asymptotic series. Despite non-convergence, the asymptotic expansions are useful when truncated to a finite number of terms. This is the reason for the popularity of leading-order methods such as the GW approximation in condensed matter, molecular and atomic physics. Appropriate truncation order required for the accurate description of strongly correlated materials is, however, not known a priori. Here an efficient me ...[more]