Collective vibrational states within the fast iterative quasiparticle random-phase approximation method
(2012) In Physical Review C (Nuclear Physics) 86(1).- Abstract
- An iterative method we previously proposed to compute nuclear strength functions [Toivanen et al., Phys. Rev. C 81, 034312 (2010)] is developed to allow it to accurately calculate properties of individual nuclear states. The approach is based on the quasiparticle random-phase approximation (QRPA) and uses an iterative non-Hermitian Arnoldi diagonalization method where the QRPA matrix does not have to be explicitly calculated and stored. The method gives substantial advantages over conventional QRPA calculations with regards to the computational cost. The method is used to calculate excitation energies and decay rates of the lowest-lying 2(+) and 3(-) states in Pb, Sn, Ni, and Ca isotopes using three different Skyrme interactions and a... (More)
- An iterative method we previously proposed to compute nuclear strength functions [Toivanen et al., Phys. Rev. C 81, 034312 (2010)] is developed to allow it to accurately calculate properties of individual nuclear states. The approach is based on the quasiparticle random-phase approximation (QRPA) and uses an iterative non-Hermitian Arnoldi diagonalization method where the QRPA matrix does not have to be explicitly calculated and stored. The method gives substantial advantages over conventional QRPA calculations with regards to the computational cost. The method is used to calculate excitation energies and decay rates of the lowest-lying 2(+) and 3(-) states in Pb, Sn, Ni, and Ca isotopes using three different Skyrme interactions and a separable Gaussian pairing force. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3001389
- author
- Carlsson, Gillis LU ; Toivanen, J. and Pastore, A.
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C (Nuclear Physics)
- volume
- 86
- issue
- 1
- article number
- 014307
- publisher
- American Physical Society
- external identifiers
-
- wos:000305936100007
- scopus:84864403697
- ISSN
- 0556-2813
- DOI
- 10.1103/PhysRevC.86.014307
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
- id
- ef9983ab-ea2a-408f-a2cc-36541faa3abc (old id 3001389)
- date added to LUP
- 2016-04-01 13:46:56
- date last changed
- 2022-01-27 21:05:00
@article{ef9983ab-ea2a-408f-a2cc-36541faa3abc,
abstract = {{An iterative method we previously proposed to compute nuclear strength functions [Toivanen et al., Phys. Rev. C 81, 034312 (2010)] is developed to allow it to accurately calculate properties of individual nuclear states. The approach is based on the quasiparticle random-phase approximation (QRPA) and uses an iterative non-Hermitian Arnoldi diagonalization method where the QRPA matrix does not have to be explicitly calculated and stored. The method gives substantial advantages over conventional QRPA calculations with regards to the computational cost. The method is used to calculate excitation energies and decay rates of the lowest-lying 2(+) and 3(-) states in Pb, Sn, Ni, and Ca isotopes using three different Skyrme interactions and a separable Gaussian pairing force.}},
author = {{Carlsson, Gillis and Toivanen, J. and Pastore, A.}},
issn = {{0556-2813}},
language = {{eng}},
number = {{1}},
publisher = {{American Physical Society}},
series = {{Physical Review C (Nuclear Physics)}},
title = {{Collective vibrational states within the fast iterative quasiparticle random-phase approximation method}},
url = {{https://lup.lub.lu.se/search/files/3584258/3173586.pdf}},
doi = {{10.1103/PhysRevC.86.014307}},
volume = {{86}},
year = {{2012}},
}