42 citations · 320 across the 16 of their papers we have counts for
15 papers
pCI: a parallel configuration interaction software package for high-precision atomic structure calculations
Charles Cheung, Mikhail G. Kozlov, Sergey G. Porsev +3
We introduce the pCI software package for high-precision atomic structure calculations. The standard method of calculation is based on the configuration interaction (CI) method to…
Comparison of theory and experiment for radiative characteristics in neutral thulium
Andrey I. Bondarev, Maris Tamanis, Ruvin Ferber +4
Intensities in Tm I emission series originating from a common upper level are measured using a Fourier transform spectrometer. The derived relative transition probabilities within…
Combination of the Perturbation Theory with Configuration Interaction Method
M. G. Kozlov, I. I. Tupitsyn, A. I. Bondarev +1
Present atomic theory provides accurate and reliable results for atoms with a small number of valence electrons. However, most current methods of calculations fail when the number…
Electron-loss-to-continuum cusp in collisions of U with N and Xe
P. -M. Hillenbrand, K. N. Lyashchenko, S. Hagmann +24
We study the electron-loss-to-continuum (ELC) cusp experimentally and theoretically by comparing the ionization of U projectiles in collisions with N and Xe targets, at…
How to access QED at supercritical Coulomb field
R. V. Popov, V. M. Shabaev, D. A. Telnov +10
In slow collisions of two bare nuclei with the total charge number larger than the critical value, , the initially neutral vacuum can spontaneously decay in…
Optical clocks based on the Cf and Cf ions
S. G. Porsev, U. I. Safronova, M. S. Safronova +4
Recent experimental progress in cooling, trapping, and quantum logic spectroscopy of highly-charged ions (HCIs) made HCIs accessible for high resolution spectroscopy and precision…
Strong relativistic effect on (quasi)resonance electron-capture processes in non-symmetrical heavy ion-atom collisions
Y. S. Kozhedub, A. I. Bondarev, X. Cai +7
(Quasi)resonance electron-capture processes in non-symmetrical heavy ion-atom collisions are studied employing a semiclassical atomic Dirac-Fock-Stu…
Accurate prediction of clock transitions in a highly charged ion with complex electronic structure
C. Cheung, M. S. Safronova, S. G. Porsev +3
We have developed a broadly-applicable approach that drastically increases the ability to accurately predict properties of complex atoms. We applied it to the case of Ir, w…
Doubly differential cross sections for ionization of lithium atom by protons and O ions
A. I. Bondarev, Y. S. Kozhedub, I. I. Tupitsyn +2
We consider single ionization of lithium atom in collisions with and O projectiles. Doubly differential cross sections for ionization are calculated within a relativisti…
Stringent tests of QED using highly charged ions
V. M. Shabaev, A. I. Bondarev, D. A. Glazov +7
The present status of tests of QED with highly charged ions is reviewed. The theoretical predictions for the Lamb shift and the transition energies are compared with available expe…
One-center calculations of the electron-positron pair creation in low-energy collisions of heavy bare nuclei
R. V. Popov, A. I. Bondarev, Y. S. Kozhedub +6
The probabilities of bound-free electron-positron pair creation are calculated for head-on collisions of bare uranium nuclei beyond the monopole approximation. The calculations are…
Relativistic calculations of differential ionization cross sections: Application to antiproton-hydrogen collisions
A. I. Bondarev, Y. S. Kozhedub, I. I. Tupitsyn +2
A new relativistic method based on the Dirac equation for calculating fully differential cross sections for ionization in ion-atom collisions is developed. The method is applied to…
Electron-positron pair creation in low-energy collisions of heavy bare nuclei
I. A. Maltsev, V. M. Shabaev, I. I. Tupitsyn +4
A new method for calculations of electron-positron pair-creation probabilities in low-energy heavy-ion collisions is developed. The approach is based on the propagation of all one-…
Relativistic calculations of the U91+(1s)-U92+ collision using the finite basis set of cubic Hermite splines on a lattice in coordinate space
G. B. Deyneka, I. A. Maltsev, I. I. Tupitsyn +5
A new method for solving the time-dependent two-center Dirac equation is developed. The approach is based on the using of the finite basis of cubic Hermite splines on a three-dimen…
Relativistic calculations of the K-K charge transfer and K-vacancy production probabilities in low-energy ion-atom collisions
I. I. Tupitsyn, Y. S. Kozhedub, V. M. Shabaev +6
The previously developed technique for evaluation of charge-transfer and electron-excitation processes in low-energy heavy-ion collisions [I.I. Tupitsyn et al., Phys. Rev. A 82, 04…