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arXiv · 1301.2022

Efficient calculation for the quasiparticle random-phase approximation matrix

Paolo Avogadro·Takashi Nakatsukasa
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Abstract

We present an efficient numerical technique to evaluate the matrix of the (quasiparticle)-random-phase approximation, using the finite amplitude method (FAM). The method is tested in calculation of monopole excitations in 120Sn, compared with result obtained with the former iterative FAM. The neutron-pair-transfer modes are calculated with the present method and their character change in neutron-rich Pb isotopes is discussed. Computational aspects of different FAM approaches are also discussed for future applications to a large-scale computation.

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Paolo Avogadro, Takashi Nakatsukasa. 2013-01-10. Efficient calculation for the quasiparticle random-phase approximation matrix. https://doi.org/10.1103/physrevc.87.014331

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