Dark pair coherent states of the motion of a trapped ion
Shih-Chuan Gou, Jörg Steinbach, P. L. Knight
We propose a scheme for generating vibrational pair coherent states of the motion of an ion in a two-dimensional trap. In our scheme, the trapped ion is excited bichromatically by three laser beams along different directions in the $X\ensuremath{-}Y$ plane of the ion trap. We show that if the initial vibrational state is given by a two-mode Fock state, the final steady state, indicated by the extinction of the fluorescence emitted by the ion, is a pure state. The motional state of the ion in the equilibrium realizes that of the highly correlated pair coherent state.
arXiv:quant-ph/9604010•Physical Review A•Aug 1, 1996•119 citations