Variational local moment approach: from Kondo effect to Mott transition in correlated electron systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00386456" target="_blank" >RIV/68378271:_____/12:00386456 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.physb.2011.10.030" target="_blank" >http://dx.doi.org/10.1016/j.physb.2011.10.030</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physb.2011.10.030" target="_blank" >10.1016/j.physb.2011.10.030</a>
Alternative languages
Result language
angličtina
Original language name
Variational local moment approach: from Kondo effect to Mott transition in correlated electron systems
Original language description
The variational local moment approach (VLMA) solution of the single impurity Anderson model is presented. It generalizes the local moment approach of Logan et al. by invoking the variational principle to determine the lengths of local moments and orbitaloccupancies. We show that VLMA is a comprehensive, conserving and thermodynamically consistent approximation and treats both Fermi and non-Fermi liquid regimes as well as local moment phases on equal footing. We tested VLMA on selected problems. We solved the single- and multi-orbital impurity Anderson model in various regions of parameters, where different types of Kondo effects occur. The application of VLMA as an impurity solver of the dynamical mean-field theory, used to solve the multi-orbital Hubbard model, is also addressed.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physica. B
ISSN
0921-4526
e-ISSN
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Volume of the periodical
407
Issue of the periodical within the volume
2
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
209-217
UT code for WoS article
000298544800004
EID of the result in the Scopus database
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