Engineering cavity-field states by projection synthesis - art. no. 043810

We propose a reliable scheme for engineering a general cavity-field state. This is different from recently presented strategies, where the cavity is s upposed to be initially empty and the field is built up photon by photon th rough resonant atom-held interactions. Here, a coherent state is previously injected into the cavity. So, the Wigner distribution function of the desi red stale is constructed from that of the initially coherent state. Such an engineering process is achieved through an adaptation of the recently prop osed technique of projection synthesis to cavity QED phenomena.