A new scheme is presented for generating atomic entangled states based on atoms-cavity-field interaction. After suitably prepared Ξ-type atoms interact with the cavity-field in the SU (1,1) coherent state initially, a subsequent measurement on this field projects the atoms onto the entangled states.
A scheme of generating the Bell-type and cluster-type entangled coherent states(ECSs) via a single two-level atom and cavity modes initially prepared in coherent states is proposed.Discussions on the two ECSs are presented.When the atom interacts separately with two Ramsey zones and two cavity modes,the generation of Bell-type ECSs in separate cavities is realized after an atomic measurement.By adding the Ramsey zones and cavity modes,the cluster-type ECSs can be generated.The interaction time between the atom and cavity modes are allπ/2λ,where A is the effective atom-cavity coupling constant. At last the experimental feasibility of such proposal is discussed.