Abstract
We propose a quantum nondemolition measurement of the motional energy of an atom confined in a trap. The quantum nondemolition coupling arises from the nonlinear vibronic dynamics of the system which is resonantly driven on a weak electronic transition. Applications are considered, such as laser cooling and preparations of nonclassical states of atomic motion. Examples are vibrational number states and quantum superpositions of coherent states undergoing a Kerr-type nonlinear interaction.
- Received 6 March 1996
DOI:https://doi.org/10.1103/PhysRevLett.76.4520
©1996 American Physical Society
