Elimination of spurious modes before the solution of quasiparticle random-phase-approximation equations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10405239" target="_blank" >RIV/00216208:11320/19:10405239 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=VwVPf0aNMh" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=VwVPf0aNMh</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epja/i2019-12898-7" target="_blank" >10.1140/epja/i2019-12898-7</a>
Alternative languages
Result language
angličtina
Original language name
Elimination of spurious modes before the solution of quasiparticle random-phase-approximation equations
Original language description
A general method for the elimination of the spurious admixtures (SA) from two-quasiparticle (2qp) intrinsic nuclear excitations is proposed. It assumes the construction of 2qp configuration space with elements orthogonal to the given spurious mode. The method exploits Quasiparticle-Random-Phase-Approximation (QRPA) matrices but does not need a prior numerical solution of QRPA, i.e. SA-elimination occurs before QRPA equations are solved. After the refined basis is prepared, it can be used in the given matrix QRPA. The method is suitable for any type of spurious modes. We demonstrate the efficiency of the method for QRPA in axially deformed Sm-154 . The cases of SA arising from the center of mass motion (K pi=0-,1-nuclear rotation (K pi=1+and pairing-induced violation of the particle number (K pi=0+are considered. The method is compared with other SA-elimination schemes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/GA19-14048S" target="_blank" >GA19-14048S: Theoretical and experimental search for new features of electromagnetic nuclear excitations</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal A
ISSN
1434-6001
e-ISSN
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Volume of the periodical
55
Issue of the periodical within the volume
11
Country of publishing house
DE - GERMANY
Number of pages
15
Pages from-to
213
UT code for WoS article
000497691200001
EID of the result in the Scopus database
2-s2.0-85075136486