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Title: Finite amplitude method for the quasiparticle random-phase approximation

Abstract

We present the finite amplitude method (FAM), originally proposed in Ref. [17], for superfluid systems. A Hartree-Fock-Bogoliubov code may be transformed into a code of the quasiparticle-random-phase approximation (QRPA) with simple modifications. This technique has advantages over the conventional QRPA calculations, such as coding feasibility and computational cost. We perform the fully self-consistent linear-response calculation for the spherical neutron-rich nucleus {sup 174}Sn, modifying the hfbrad code, to demonstrate the accuracy, feasibility, and usefulness of the FAM.

Authors:
 [1];  [2];  [2];  [1];  [3]
  1. RIKEN Nishina Center, Wako-shi 351-0198 (Japan)
  2. (Italy)
  3. (Japan)
Publication Date:
OSTI Identifier:
21596560
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 84; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.84.014314; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACCURACY; AMPLITUDES; HARTREE-FOCK-BOGOLYUBOV THEORY; MODIFICATIONS; NEUTRON-RICH ISOTOPES; RANDOM PHASE APPROXIMATION; SPHERICAL CONFIGURATION; SUPERFLUIDITY; APPROXIMATIONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALCULATION METHODS; CONFIGURATION; ISOTOPES; RADIOISOTOPES

Citation Formats

Avogadro, Paolo, Dipartimento di Fisica, Universita degli Studi di Milano, via Celoria 16, I-20133 Milan, INFN, Sezione di Milano, Milan, Nakatsukasa, Takashi, and Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8571. Finite amplitude method for the quasiparticle random-phase approximation. United States: N. p., 2011. Web. doi:10.1103/PHYSREVC.84.014314.
Avogadro, Paolo, Dipartimento di Fisica, Universita degli Studi di Milano, via Celoria 16, I-20133 Milan, INFN, Sezione di Milano, Milan, Nakatsukasa, Takashi, & Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8571. Finite amplitude method for the quasiparticle random-phase approximation. United States. doi:10.1103/PHYSREVC.84.014314.
Avogadro, Paolo, Dipartimento di Fisica, Universita degli Studi di Milano, via Celoria 16, I-20133 Milan, INFN, Sezione di Milano, Milan, Nakatsukasa, Takashi, and Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8571. Fri . "Finite amplitude method for the quasiparticle random-phase approximation". United States. doi:10.1103/PHYSREVC.84.014314.
@article{osti_21596560,
title = {Finite amplitude method for the quasiparticle random-phase approximation},
author = {Avogadro, Paolo and Dipartimento di Fisica, Universita degli Studi di Milano, via Celoria 16, I-20133 Milan and INFN, Sezione di Milano, Milan and Nakatsukasa, Takashi and Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8571},
abstractNote = {We present the finite amplitude method (FAM), originally proposed in Ref. [17], for superfluid systems. A Hartree-Fock-Bogoliubov code may be transformed into a code of the quasiparticle-random-phase approximation (QRPA) with simple modifications. This technique has advantages over the conventional QRPA calculations, such as coding feasibility and computational cost. We perform the fully self-consistent linear-response calculation for the spherical neutron-rich nucleus {sup 174}Sn, modifying the hfbrad code, to demonstrate the accuracy, feasibility, and usefulness of the FAM.},
doi = {10.1103/PHYSREVC.84.014314},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 1,
volume = 84,
place = {United States},
year = {2011},
month = {7}
}