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Relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) calculations with configuration interaction (CI) are carried out for the $^{1}S_{0}$ and $^{3}P_{0,1}^o$ states in neutral ytterbium by use of the available GRASP2018 package. From…

原子物理 · 物理学 2021-08-16 Jesse S. Schelfhout , John J. McFerran

The multiconfiguration Dirac-Hartree-Fock (MCDHF) and relativistic configuration interaction (RCI) methods are used to provide excitation energies, radiative transition data, lifetimes, Lande g-factors, hyperfine interaction constants and…

Extensive self-consistent multi-configuration Dirac-Hartree-Fock (MCDHF) calculations are performed for the $3s^2 3p^6 3d^k$ ($k=1-9$) ground configurations of highly charged ions ($Z=72-83$). Complete and consistent data sets of…

原子物理 · 物理学 2017-11-22 ZhanLong Zhao , Kai Wang , Shuang Li , Ran Si , ChongYang Chen , Jun Yan , Yuri Ralchenko

The $4d \to 3p$ x-ray transitions in Cu- and Ni-like tungsten ions have been studied theoretically. The multiconfiguration Dirac-Hartree-Fock (MCDHF) method and the large-scale relativistic configuration-interaction (CI) method have been…

原子物理 · 物理学 2024-05-16 Karol Kozioł , Jacek Rzadkiewicz

We use the multiconfiguration Dirac-Hartree-Fock (MCDHF) method combined with the relativistic configuration interaction (RCI) approach (GRASP2K) to provide a consistent set of transition energies and radiative transition data for the lower…

原子物理 · 物理学 2020-01-08 K. Wang , P. Jönsson , G. Del Zanna , M. Godefroid , Z. B. Chen , C. Y. Chen , J. Yan

The multiconfiguration Dirac-Hartree-Fock (MCDHF) method has been employed to calculate atomic electric dipole moments (EDM) of 225^Ra, 199^Hg, and 171^Yb. For the calculations of the matrix elements we extended the relativistic atomic…

原子物理 · 物理学 2013-12-24 Laima Radziute , Gediminas Gaigalas , Per Jonsson , Jacek Biero

The multiconfiguration Dirac-Hartree-Fock (MCDHF) model has been employed to calculate the transition rates between the nine lowest levels of radium. The dominant rates were then used to evaluate the radiative lifetimes. The decay of the…

原子物理 · 物理学 2009-11-13 Jacek Bieron , Paul Indelicato , Per Jonsson

The multiconfiguration Dirac-Hartree-Fock (MCDHF) model has been employed to calculate the expectation values for the hyperfine splittings of the 5d96s2 2D3/2 and 5d96s2 2D5/2 levels of atomic gold. One-, two-, and three-body electron…

We report a three-dimensional numerical implementation of multiconfiguration time-dependent Hartree-Fock (MCTDHF) based on a multi-resolution Cartesian grid, with no need to assume any symmetry of molecular structure. We successfully…

计算物理 · 物理学 2016-03-23 Ryohto Sawada , Takeshi Sato , Kenichi L. Ishikawa

Using the multiconfiguration Dirac-Hartree-Fock (MCDHF) and the relativistic configuration interaction (RCI) methods, a consistent set of transition energies and radiative transition data for the lowest 150 states of the $3s^2 3p^3$, $3s…

The multiconfiguration time-dependent Hartree-Fock (MCTDHF) method is formulated for treating the coupled electronic and nuclear dynamics of diatomic molecules without the Born- Oppenheimer approximation. The method treats the full…

计算物理 · 物理学 2015-05-27 Daniel J. Haxton , Keith V. Lawler , C. William McCurdy

We present extensive multiconfiguration Dirac-Hartree-Fock and relativistic configuration interaction calculations including 106 states in doubly ionized silicon (Si III) and 45 states in triply ionized silicon (Si iv), which are important…

原子物理 · 物理学 2019-10-16 Betül Atalay , Tomas Brage , Per Jönsson , Henrik Hartman

The Graspg program package is an extension of Grasp2018 [Comput. Phys. Commun. 237 (2019) 184-187] based on configuration state function generators (CSFGs). The generators keep spin-angular integrations at a minimum and reduce substantially…

原子物理 · 物理学 2025-04-18 Ran Si , Yanting Li , Kai Wang , Chongyang Chen , Gediminas Gaigalas , Michel Godefroid , Per Jönsson

Large scale calculations for the energy levels, transition rates, oscillator strengths, hyperfine interaction constants, Land\'e g$_J$ factors and isotope shifts have been performed for $1s^2$ and $1snl \: (n=2-8 $ and $l \leq (n-1) )$…

原子物理 · 物理学 2024-01-15 Shikha Rathi , Lalita Sharma

Large-scale calculations of atomic structures and radiative properties have been carried out for singly, doubly- and trebly ionized cerium. For this purpose, the purely relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method was…

原子物理 · 物理学 2020-12-09 H. Carvajal Gallego , P. Palmeri , P. Quinet

The present work reports results from systematic multiconfiguration Dirac-Hartree-Fock calculations of electronic isotope shift factors for a set of transitions between low-lying states in neutral aluminium. These electronic quantities…

Multiconfiguration Hartree-Fock (MCHF) and multiconfiguration Dirac-Hartree-Fock (MCDHF) calculations are performed for the $2p^{5}~^{2}P^{o}$, $2p^4(^{3}P)3s~^{4}P$, $2p^4(^{3}P)3s~^{2}P$ and $2p^4(^{3}P)3p~^{4}S^o$ states of $^{19}$F~I to…

原子物理 · 物理学 2018-04-12 Nouria Aourir , Messaoud Nemouchi , Michel Godefroid , Per Jönsson

We demonstrate behaviors of correlation effects in the calculations of atomic properties through two commonly employed many-body methods; namely multiconfiguration Dirac-Hartree-Fock (MCDHF) and relativistic coupled-cluster (RCC) methods.…

原子物理 · 物理学 2025-04-29 B. K. Sahoo , Per Jönsson , Gediminas Gaigalas

The present work reports results from systematic multiconfiguration Dirac-Hartree-Fock calculations of isotope shifts for several well-known transitions in neutral magnesium. Relativistic normal and specific mass shift factors as well as…

原子物理 · 物理学 2016-07-13 Livio Filippin , Michel Godefroid , Jörgen Ekman , Per Jönsson

The present work reports results from systematic multiconfiguration Dirac-Hartree-Fock calculations of electronic isotope shift factors for a set of transitions between low-lying states in neutral zinc. These electronic quantities together…

原子物理 · 物理学 2017-10-18 Livio Filippin , Jacek Bieroń , Gediminas Gaigalas , Michel Godefroid , Per Jönsson
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