Singles correlation energy contributions in solids
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10319119" target="_blank" >RIV/00216208:11320/15:10319119 - isvavai.cz</a>
Alternative codes found
RIV/61388955:_____/15:00446834
Result on the web
<a href="http://dx.doi.org/10.1063/1.4929346" target="_blank" >http://dx.doi.org/10.1063/1.4929346</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4929346" target="_blank" >10.1063/1.4929346</a>
Alternative languages
Result language
angličtina
Original language name
Singles correlation energy contributions in solids
Original language description
The random phase approximation to the correlation energy often yields highly accurate results for condensed matter systems. However, ways how to improve its accuracy are being sought and here we explore the relevance of singles contributions for prototypical solid state systems. We set out with a derivation of the random phase approximation using the adiabatic connection and fluctuation dissipation theorem, but contrary to the most commonly used derivation, the density is allowed to vary along the coupling constant integral. This yields results closely paralleling standard perturbation theory. We re-derive the standard singles of Gorling-Levy perturbation theory [A. Gorling and M. Levy, Phys. Rev. A 50, 196 (1994)], highlight the analogy of our expression to the renormalized singles introduced by Ren and coworkers [Phys. Rev. Lett. 106, 153003 (2011)], and introduce a new approximation for the singles using the density matrix in the random phase approximation. We discuss the physical r
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
BE - Theoretical physics
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Chemical Physics
ISSN
0021-9606
e-ISSN
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Volume of the periodical
143
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
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UT code for WoS article
000361572900021
EID of the result in the Scopus database
2-s2.0-84940399469