Large Contributions of Negative Energy States to Forbidden Magnetic-Dipole Transition Amplitudes in Alkali-Metal Atoms

I. M. Savukov, A. Derevianko, H. G. Berry +1

The influence of negative-energy states (NES) on forbidden magnetic-dipole $n{s}_{1/2}-(n+1)s_{1/2}$ transitions in alkali-metal atoms is investigated. We find that the NES contribut…