This paper detailed deduces the transform of wave function between the discretional mechanical parameter representations,the average value in the discretional mechanical parameter representations and the transform of operator between the discretional mechanical parameter representations,and explains the significance of those deductions.
By searching for Q- and P-ordering form of the coordinate-momentum intermediate representation |x⟩λ,νλ,ν⟨x| (formed by the eigenvector of λQ+νP with eigenvalue being x, Q,P=iħ), and noting that |x⟩λ,νλ,ν⟨x|=δ(x-λQ-νP) is just the Radon transformation of the Wigner operator, we find new relationship between a quantum state ψ’s tomogram and its wave function in coordinate (or momentum) representation, i.e. the tomogram can be split into two parts, one is ψq’s Gaussian integration transformation with the parameter ν and another is ψ∗p’s Gaussian integration transformation with the parameter λ. In this way, the quantum tomogram of number state is conveniently deduced. We also derive Radon transform of δ(p-P)δ(q-Q) and δ(q-Q)δ(p-P), which can be either viewed as P- and Q-ordered operator correspondence of the classical function δ(x-λq-νp).
By discussing the relationship between the coordinate representation and the discretional mechanical parameter representation,this paper analyses the origin of the δ function normalization of eigenfunction with continuous eigenvalue.A conclusion is obtained that the eigenfunction of coordinate in the discretional mechanical parameter representation and the eigenfunction of discretional mechanical parameter in the coordinate representation are conjugated complex number of each other.Using this conclusion we give a new physical explanation of the eigenfunction closure.
A new mathematical method is established to represent the operator, wave functions and square matrix in the same representation. We can obtain the specific square matrices corresponding to the angular momentum and Runge-Lenz vector operators with invoking assistance from the operator relations and the orthonormal wave functions. Furthermore, the first-order differential equations will be given to deduce the specific wave functions without using the solution of the second order Schrodinger equation. As a result, we will unify the descriptions of the matrix mechanics and the wave mechanics on hydrogen atom. By using matrix transformations, we will also deduce the specific matrix representations of the operators in the SO (4,2) group.