Lithium electric dipole polarizability
2011; American Physical Society; Volume: 84; Issue: 5 Linguagem: Inglês
10.1103/physreva.84.052518
ISSN1538-4446
AutoresMariusz Puchalski, Dariusz Kędziera, Krzysztof Pachucki,
Tópico(s)Atomic and Molecular Physics
ResumoThe electric dipole polarizability of the lithium atom in the ground state is calculated including relativistic and quantum electrodynamics corrections. The obtained result ${\ensuremath{\alpha}}_{E}=164.0740(5)$ a.u. is in good agreement with the less accurate experimental value of $164.19(1.08)$ a.u. The small uncertainty of about 3 parts per ${10}^{6}$ comes from the approximate treatment of quantum electrodynamics corrections. Our theoretical result can be considered as a benchmark for more general atomic structure methods and may serve as a reference value for the relative measurement of polarizabilities of the other alkali-metal atoms.
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