Numerical Convergence of Electromagnetic Responses with the Finite-Amplitude Method
arXiv:2312.03202 · doi:10.1051/epjconf/202429210001
Abstract
The response of a nucleus to an electromagnetic probe is a key quantity to simulate photabsorption or photodeexcitation processes. For large calculations at the scale of the entire mass table, this response can be estimated by linear response theory. Thanks to the introduction of the finite-amplitude method (FAM), calculations are computationally efficient. In this paper, we investigate in more details the convergence of FAM calculations of the response function as a function of the parameters controlling the numerical implementation of the theory. We show that the response is much less sensitive to the details of the single-particle basis than, e.g., Hartree-Fock-Bogoliubov calculations.
8 pages, 4 figures, proceeding for the 16th Varenna Conference on Nuclear Reaction Mechanisms
References in corpus (8)
- Axially deformed solution of the Skyrme-Hartree-Fock-Bogolyubov equations using the transformed harmonic oscillator basis (II) HFBTHO v2.00d: a new version of the program
- Reference Database for Photon Strength Functions
- Finite amplitude method for the quasi-particle-random-phase approximation
- Large-scale deformed quasiparticle random-phase approximation calculations of the -ray strength function using the Gogny force
- Pairing renormalization and regularization within the local density approximation
- Axially-deformed solution of the Skyrme-Hartree-Fock-Bogoliubov equations using the transformed harmonic oscillator basis (IV) hfbtho (v4.0): A new version of the program
- Finite-amplitude method for collective inertia in spontaneous fission
- Controlling extrapolations of nuclear properties with feature selection