  We present a scheme for transferring quantum state between atom and cavity
field in Jaynes-Cummings model. It is based on the fact that the atom in a
cavity can induce the generation of modified coherent states, which can be
shown to be macroscopically distinguishable. The application on two-cavity
system provides an alternative scheme for preparation of non-local
superpositions of quasi-classical light states. Numerical simulation shows that
the proposed schemes are efficient.
