ADDITIONAL VACUUM-FIELD RABI SPLITTINGS IN CAVITY QED

I show how coherence on a long-time scale between two dressed states of the same doublet can be produced. Such a coherence leads to additional vacuum-field Rabi splittings at new frequencies in the cavity transmission and in sideways fluorescence. These additional vacuum-field Rabi splittings are shown to be analogous to the dephasing-induced coherences in nonlinear optics.