246 citations · 1.8k across the 38 of their papers we have counts for
10 papers · 1 filter
Finite-amplitude method: An extension to the covariant density functionals
Haozhao Liang, Takashi Nakatsukasa, Zhongming Niu +1
The finite-amplitude method (FAM) is one of the most promising methods for optimizing the computational performance of the random-phase approximation (RPA) calculations in deformed…
Nuclear charge-exchange excitations in localized covariant density functional theory
H. Z. Liang, J. Meng, T. Nakatsukasa +5
The recent progress in the studies of nuclear charge-exchange excitations with localized covariant density functional theory is briefly presented, by taking the fine structure of s…
Relativistic symmetry in deformed nuclei by similarity renormalization group
Jian-You Guo, Shou-Wan Chen, Zhong-Ming Niu +2
The similarity renormalization group is used to transform a general Dirac Hamiltonian into diagonal form. The diagonal Dirac operator consists of the nonrelativistic term, the spin…
Radial basis function approach in nuclear mass predictions
Z. M. Niu, Z. L. Zhu, Y. F. Niu +3
The radial basis function (RBF) approach is applied in predicting nuclear masses for 8 widely used nuclear mass models, ranging from macroscopic-microscopic to microscopic types. A…
Pairing transitions in the finite-temperature relativistic Hartree-Bogoliubov theory
Y. F. Niu, Z. M. Niu, N. Paar +4
We formulate the finite-temperature relativistic Hartree-Bogoliubov theory for spherical nuclei based on a point-coupling functional, with the Gogny or separable pairing force. Usi…
Nuclear effective charge factor originating from covariant density functional theory
Z. M. Niu, Q. Liu, Y. F. Niu +2
Guiding by the relativistic local density approximation, we explore a phenomenological formula for the coupling strength of Coulomb field to take into account the Coulomb exchange…
Nuclear /EC decays in covariant density functional theory and the impact of isoscalar proton-neutron pairing
Z. M. Niu, Y. F. Niu, Q. Liu +2
Self-consistent proton-neutron quasiparticle random phase approximation based on the spherical nonlinear point-coupling relativistic Hartree-Bogoliubov theory is established and us…
Global dynamical correlation energies in covariant density functional theory: cranking approximation
Q. S. Zhang, Z. M. Niu, Z. P. Li +2
The global dynamical correlation energies for 575 even-even nuclei with proton numbers ranging from Z=8 to Z=108 calculated with the covariant density functional theory using the P…
Feasibility of the finite amplitude method in covariant density functional theory
Haozhao Liang, Takashi Nakatsukasa, Zhongming Niu +1
Self-consistent relativistic random-phase approximation (RPA) in the radial coordinate representation is established by using the finite amplitude method (FAM). Taking the isoscala…
Resonant states and pseudospin symmetry in the Dirac Morse potential
Quan Liu, Zhong-Ming Niu, Jian-You Guo
The complex scaling method is applied to study the resonances of a Dirac particle in a Morse potential. The applicability of the method is demonstrated with the results compared wi…