| Abstract: | This paper proposes schemes for generating multiple-photon andmultiple-atom cluster states, respectively. The schemes are based onthe cavity input--output process and atomic or photonic statesmeasurement, and the successful probabilities approach unity in theideal case. The numerical simulations show that the producedmultiple-particle cluster states have high fidelity even if theLamb--Dicke condition is not satisfied. Some practical imperfections,such as atomic spontaneous emission and output coupling inefficiency,only decrease the success probability but exert no influence on thefidelity of generated multiple-particle cluster states. From theexperimental point of view, smaller operation number and lack of needfor individual addressing keeps the schemes easy to implement. Theseschemes may offer a promising approach to the generation of alarge-scale cluster state. |
