Efficient method for computing the Thouless-Valatin inertia parameters
Zhipan Li and T. Niksic and P. Ring and D. Vretenar and Jiangming Yao and Jie Meng
Keywords
Moment of inertia, density functional theory, Bohr Hamiltonian
Abstract
Starting from the adiabatic time-dependent Hartree-Fock approximation (ATDHF), we propose an efficient method to calculate the Thouless-Valatin moments of inertia for the nuclear system. The method is based on the rapid convergence of the expansion of the inertia matrix. The accuracy of the proposed method is verified in the rotational case by comparing the results with the exact Thouless-Valatin moments of inertia calculated using the self-consistent cranking model. The proposed method is computationally much more efficient than the full ATDHF calculation, yet it retains a high accuracy of the order of 1%.
