Conclusion

Vladimir Anisimov, Yuri Izyumov

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Citations (Scopus)

Abstract

Two decades have passed since first ideas appeared leading to development of Dynamical Mean-Field Theory (DMFT) that becomes now a basic method to study strongly correlated systems (SCS). During this time hundreds of theoretical works were done using DMFT to study as basic models as well as real materials where physics is determined by correlation effects. A basic approximation of DMFT is neglect of spatial correlations with full description of local dynamical fluctuations. That is equivalent to approximation where self-energy is local depending only on frequency but not on wave vector. In DMFT method lattice problem is mapped on single-site impurity problem where atom with Coulomb interaction among electrons in d or f shell is embedded in energy (or time) dependent Weiss field (hence the name of the method: dynamical mean field). Spatial correlations neglect is justified when the system is not close to transition in long-range ordering state so that long coherent length fluctuations do not develops. With very few exceptions like high-Tc cuprates such conditions are realized in real materials and DMFT method was very successful in vast majority of applications.

Original languageEnglish
Title of host publicationSpringer Series in Solid-State Sciences
PublisherSpringer Science and Business Media Deutschland GmbH
Pages253-255
Number of pages3
DOIs
Publication statusPublished - 2010
Externally publishedYes

Publication series

NameSpringer Series in Solid-State Sciences
Volume163
ISSN (Print)0171-1873
ISSN (Electronic)2197-4179

Keywords

  • Kondo Lattice Model
  • Local Density Approxi
  • Periodic Anderson Model
  • Quantum Monte Carlo
  • Quantum Monte Carlo Method

Fingerprint

Dive into the research topics of 'Conclusion'. Together they form a unique fingerprint.

Cite this