Relativistic many-body and QED effects on the hyperfine structure of lithium-like ions

S. Boucard (1) , P. Indelicato (1)

1 LKB (Jussieu) - Laboratoire Kastler Brossel

The hyperfine splitting of the ground state of three-electron ions is studied in detail with the help of the multi-configuration Dirac-Fock method. We study the role of the magnetic electron-electron interaction and of the negative energy continuum. An all-order evaluation of some vacuum polarization corrections is performed. The Bohr-Weisskopf effect is evaluated in a simple model.

Domaines: Physique [physics]

S. Boucard, P. Indelicato. Relativistic many-body and QED effects on the hyperfine structure of lithium-like ions. The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2000, 8 (1), pp.59-73. ⟨hal-02093817⟩