B. Baseia et al., SCATTERING OF ATOMS BY LIGHT - PROBING A QUANTUM STATE AND THE VARIANCE OF THE PHASE OPERATOR, Physics letters. A, 194(3), 1994, pp. 153-158
An experiment is proposed to study the quantum state and the variance
of the phase operator by measuring the momentum distribution of the at
oms resulting from the interaction of an atomic beam with a single mod
e electromagnetic field via a two-photon interaction. A comparison of
the results with those obtained for a one-photon interaction is made.
Advantages in using the two-photon interaction are pointed out.