Ground and excited S-1 states of the beryllium atom
| dc.contributor.author | Hornyak, Istvan | |
| dc.contributor.author | Adamowicz, Ludwik | |
| dc.contributor.author | Bubin, Sergiy | |
| dc.date.accessioned | 2019-12-18T08:22:38Z | |
| dc.date.available | 2019-12-18T08:22:38Z | |
| dc.date.issued | 2019-09-04 | |
| dc.description.abstract | Benchmark calculations of the total and transition energies of the four lowest S-1 states of the beryllium atom are performed. The computational approach is based on variational calculations with finite mass of the nucleus. All-particle explicitly correlated Gaussian (ECG) functions are used to expand the total non-Born-Oppenheimer nonrelativistic wave functions and the ECG exponential parameters are optimized using the standard variational method. The leading relativistic and quantum electrodynamics energy corrections are calculated using the first-order perturbation theory. A comparison of the experimental transition frequencies with the ones calculated in this work shows excellent agreement. The deviations of 0.02-0.09 cm(-1) are well within the estimated error limits for the experimental values. | en_US |
| dc.identifier.citation | Hornyák, I., Adamowicz, L., & Bubin, S. (2019). Ground and excited S 1 states of the beryllium atom. Physical Review A, 100(3), 032504. | en_US |
| dc.identifier.uri | http://nur.nu.edu.kz/handle/123456789/4472 | |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.rights | Attribution-NonCommercial-ShareAlike 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | * |
| dc.title | Ground and excited S-1 states of the beryllium atom | en_US |
| dc.type | Article | en_US |
| workflow.import.source | science |