On the use of limited configuration interaction for many-body systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F00%3A%230001961" target="_blank" >RIV/47813059:19240/00:#0001961 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
On the use of limited configuration interaction for many-body systems
Original language description
New a posteriori corrections to the method of limited configuration interaction are proposed which restore a linear scaling with particle number. The corrections are based on an analysis of the Brillouin-Wigner perturbation theory, using a Lippmann-Schwinger-like equation, and its connection with the limited configuration-interaction method. The new corrections are general and can be applied to any limited configuration-interaction approximation. An illustrative application to the ground state of the water molecule is presented and the results are compared with those obtained by employing other approaches to the correlation problem.
Czech name
Použitie limitovanej metódy konfiguračnej interakcie pre mnohočasticové systémy
Czech description
Nová a posteriori korekcia pre obmedzenú metódu konfiguračnej interakcie je prezentovaná. Tieto korekcie obnovujú lineárne škálovanie s počtom častíc. Korekcie sú založené na analýze Brillouin-Wignerovej poruchovej teórie a Lippmann-Schwingerovej rovnicea jej vzťahu ku metóde configuračnej interakcie. Nové korekcie majú všeobecný charakter a môžu byť použité pre ľubovolnú konfiguračnú interakciu. Ilustračný výpočet pre základný stav molekuly vody je prezentovaný a porovnaný s inými prístupmi.
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
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2000
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 PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
ISSN
0953-4075
e-ISSN
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Volume of the periodical
33
Issue of the periodical within the volume
21
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
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UT code for WoS article
000165666200024
EID of the result in the Scopus database
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