Finite amplitude method for the RPA solution

Details Finite amplitude method for the RPA solution Finite amplitude method for the RPA solution

2007-03-30

arxiv.org/abs/nucl-th/0703100v1

Phys.Rev.C76:024318,2007

Physics

Nuclear Physics

Nuclear Theory

12 pages, 3 figures

Scientific paper

10.1103/PhysRevC.76.024318

We propose a practical method to solve the random-phase approximation (RPA) in the self-consistent Hartree-Fock (HF) and density-functional theory. The method is based on numerical evaluation of the residual interactions utilizing finite amplitude of single-particle wave functions. The method only requires calculations of the single-particle Hamiltonian constructed with independent bra and ket states. Using the present method, the RPA calculation becomes possible with a little extension of a numerical code of the static HF calculation. We demonstrate usefulness and accuracy of the present method performing test calculations for isoscalar responses in deformed 20Ne.

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