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pro vyhledávání: '"Fischer, Charlotte Froese"'
In the case of the one-electron Dirac equation with a point nucleus the Virial Theorem (VT) states that the ratio of the kinetic energy to potential energy is exactly $-1$, a ratio that can be an independent test of the accuracy of a computed solutio
Externí odkaz:
http://arxiv.org/abs/2109.12693
Publikováno v:
Phys. Rev. A 101, 062510 (2020)
We are reinvestigating the hyperfine structure of sodium using a fully relativistic multiconfiguration approach. In the fully relativistic approach, the computational strategy somewhat differs from the original nonrelativistic counterpart used in J\"
Externí odkaz:
http://arxiv.org/abs/2002.01979
Publikováno v:
Physical Review A 99, 032511 (2019)
Atoms and ions of Lanthanides have multiple opens shells along with an open $4f^k$ subshell. This paper studies the effect of electron correlation in such systems and how wave functions can be determined for the accurate prediction of atomic properti
Externí odkaz:
http://arxiv.org/abs/1906.00842
Publikováno v:
Atoms 7 (2019), 54
Fully relativistic calculations have been performed for two multiplets, $3s3p^2\;^4P$ and $3s3p4s\;^4P^o$, in Al I. Wave functions were obtained for all levels of these multiplets using the GRASP programs. Reported are the E1 transitions rates for al
Externí odkaz:
http://arxiv.org/abs/1905.11510
Autor:
Fischer, Charlotte Froese, Verdebout, Simon, Godefroid, Michel, Rynkun, Pavel, Jönsson, Per, Gaigalas, Gediminas
No lines have been observed for transitions between the doublet and quartet levels of B I. Consequently, energy levels based on observation for the latter are obtained through extrapolation of wavelengths along the iso-electronic sequence for the 2s2
Externí odkaz:
http://arxiv.org/abs/1310.2394
Autor:
Carette, Thomas, Drag, Cyril, Scharf, Oliver, Blondel, Christophe, Delsart, Christian, Fischer, Charlotte Froese, Godefroid, Michel
The electron affinities eA(S) are measured for the two isotopes 32S and 34S (16752.9753(41) and 16752.9776(85) cm-1, respectively). The isotope shift in the electron affinity is found to be positive, eA(34S)-eA(32S) = +0.0023(70) cm-1, but the uncert
Externí odkaz:
http://arxiv.org/abs/1002.1297
Publikováno v:
Physical Review A: Atomic, Molecular and Optical Physics 79, 5 (2010) 052502
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 correlation eff
Externí odkaz:
http://arxiv.org/abs/0902.4307
The B-spline Galerkin method is investigated for the simple eigenvalue problem, $y^{\prime\prime} = -\lambda^2 y$. Special attention is give to boundary conditions. From this analysis, we propose a stable method for the Dirac equation and evaluate it
Externí odkaz:
http://arxiv.org/abs/0806.3067
Energy levels, lifetimes, and transition probabilities for transitions between computed levels of 3d^5 of Fe IV are reported. The E2 and M1 transition probabilities are compared with earlier theoretical results, often only the values published by Gar
Externí odkaz:
http://arxiv.org/abs/astro-ph/0408423
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