  The interaction of a three level Rydberg atom of Lambda-type with a single
mode optical field in far off-resonant and at large detuning regimes can be
described by an effective degenerate Raman model, where the atomic state can be
treated as a two-level system of degenerate states. By means of this
approximation, we propose a quantum information transfer of an one-qubit state
from a Rydberg atom of Lambda-type with degenerate levels to a single-mode
field initially in a coherent state.
