出版社：The Editorial Committee of the Interdisciplinary Information Sciences
摘要：The normal-ordered form of the composition of the exponential of a quadratic annihilation operator and its adjoint is derived by means of a new method based on quantum white noise calculus. Our method consists of two steps: (i) to derive a system of differential equations consisting of quantum white noise derivatives and Wick products; and (ii) to solve explicitly the system of differential equations.
关键词：Boson Fock space;normal-ordered form;quadratic annihilation and creation operator;quantum white noise;Wick product
