International Journal of Electrochemical Science.
Electrochemical Science Group.
Vol. 14.
2019.
P. 11480-11480
Nonrelativistic energy levels of helium atom
The nonrelativistic energy levels of a helium atom are calculated for S, P, D and F states. The calculations are based on the variational method of "exponential" expansion. The convergence of the calculated energy levels is studied as a function of the number of basis functions N. This allows us to claim that the obtained energy values (including the values for the states with a nonzero angular momentum) are accurate up to 28-35 significant digits. © 2019 Sissa Medialab Srl. All rights reserved.
Authors
Aznabayev D.T.1,
2,
3
,
Bekbaev A.K.1,
4
,
Korobov V.I.
1,
5
Conference proceedings
Publisher
Sissa Medialab Srl
Language
English
Status
Published
Number
060
Volume
353
Year
2019
Organizations
- 1 Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, 141980, Russian Federation
- 2 Institute of Nuclear Physics, Ministry of Energy of the Republic of Kazakhstan, Almaty, 050032, Kazakhstan
- 3 L.N. Gumilyov Eurasian National University, Astana, 010000, Kazakhstan
- 4 Al-Farabi Kazakh National University, Almaty, 050038, Kazakhstan
- 5 Peoples' Friendship University of Russia, RUDN University, 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
Keywords
Basis functions; Energy value; Helium atom; Nonrelativistic energy; Significant digits; Variational methods; Helium
Date of creation
02.11.2020
Date of change
02.11.2020
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