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12 papers · 2 filters
Precision calculation of energy levels for four-valent Si I
R. T. Imanbaeva, M. G. Kozlov, E. A. Konovalova
We report results of the calculation of the low-lying levels of neutral Si using a combination of the configuration interaction and many-body perturbation theory (CI+MBPT method).…
Prediction of quantum many-body chaos in protactinium atom
A. V. Viatkina, M. G. Kozlov, V. V. Flambaum
Energy level spectrum of protactinium atom (Pa, Z=91) is simulated with a CI calculation. Levels belonging to the separate manifolds of a given total angular momentum and parity $J…
Study of the scalar-pseudoscalar interaction in the francium atom
L. V. Skripnikov, D. E. Maison, N. S. Mosyagin
Fr atom can be successively used to search for the atomic permanent electric dipole moment (EDM) [Hyperfine Interactions 236, 53 (2015); Journal of Physics: Conference Series 691,…
Laser controlled charge-transfer reaction at low temperatures
Alexander Petrov, Constantinos Makrides, Svetlana Kotochigova
We study the low-temperature charge transfer reaction between a neutral atom and an ion under the influence of near-resonant laser light. By setting up a multi-channel model with f…
Combined 4-component and relativistic pseudopotential study of ThO for the electron electric dipole moment search
L. V. Skripnikov
A precise theoretical study of the electronic structure of heavy atom diatomic molecules is of key importance to interpret the experiments in the search for violation of time-rever…
Effective three particle forces in polyvalent atoms
M. G. Kozlov, M. S. Safronova, S. G. Porsev +1
We study effective three-particle interactions between valence electrons, which are induced by the core polarization. Such interactions are enhanced when valence orbitals have stro…