Figure 5: Relevant energy levels and transitions in the magnesium logic ion.
From: Precision spectroscopy by photon-recoil signal amplification
Ground-state cooling and coherent manipulation are implemented through Raman beams (detuned by 9.2 GHz from the excited state), which couple the two qubit states |F=3, mF=3
=|↓
, |F=2, mF=2
=|↑
using π- and σ-polarized light. Laser cooling and internal-state discrimination is performed using resonant light with the |↓
↔|F=4, mF=4
=|e
excited state.
