The technique of integration within an ordered product of operators and the coherent-state representationare used to convert exponential operators of basis operators (p2, Q2, pQ + Qp) to those of the basis operators (...The technique of integration within an ordered product of operators and the coherent-state representationare used to convert exponential operators of basis operators (p2, Q2, pQ + Qp) to those of the basis operators (a2, a+2,ara). The coherent state representation of unitary squeezing operators in the factorized form and their normal productform are thus derived. The squeezing engendered by operators of the general form exp{-i[αP2 + βQ2 + γ/2 (QP + PQ)] }is also obtained.展开更多
文摘The technique of integration within an ordered product of operators and the coherent-state representationare used to convert exponential operators of basis operators (p2, Q2, pQ + Qp) to those of the basis operators (a2, a+2,ara). The coherent state representation of unitary squeezing operators in the factorized form and their normal productform are thus derived. The squeezing engendered by operators of the general form exp{-i[αP2 + βQ2 + γ/2 (QP + PQ)] }is also obtained.
