摘要
We present a scheme to entangle fields in multiple cavities. Our scheme is based on the resonant interaction of a ≡-type three-level atom with the cavity fields for precalculated interaction time, which enables us to generate a quantum entangled Greenberger-Horn-Zeilinger （GHZ） state of fields in multiple cavities. In principle, the scheme can be also generalized to generate N-party GHZ state. The required experimental techniques are within the scope of what can be obtained in the microwave cavity QED set up.
基金
The project supported in part by National Nat, ural Science Foundation of China under Grant No. 60478029
We would like to thank professor Wu Ying for enlightening discussions
