NEW APPROACH TO THE STUDY OF ATOMIC COHERENT STATE

On the basis the technique of performing integration within ordered product proposed in our previous paper^[1] and Schwinger boson representation for angular momentum, we derive new normal duct forms for coset element R_θφ≡exp[-iθ(J_xsinφ-J_ycosφ)] of SD(2) group and their product R_θ,φ, R_θφ as well as some new operator identities which are useful in studying atomic coherent state.This new formulation provides the possibility of making use of the Glauber coherent state to find new properties of atomic system.