简介：Inthispaperbyvirtueofthetechniqueofintegrationwithinanorderedproduct(IWOP)ofoperatorsandtheintermediatecoordinate-momentumrepresentationinquantumoptics,wederivethenormalorderingandantinormalorderingproductsoftheoperator(fQ+gP)nwhennisanarbitraryinteger.Theseproductsareveryusefulincalculatingtheirmatrixelementsandexpectationvaluesandobtainingsomeusefulmathematicalformulae.Finally,theapplicationsofsomenewidentitiesaregiven.
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