Method of Moments in Quantum Mechanics
Abstract
An approximation technique for quantummechanical problems based on the expectation values of the powers of the Hamiltonian is developed. The mathematical foundations on which this approach is based are the method of moments employed in probability theory, and the theory of orthogonal polynomials. In practice this method constitutes an extension of the RayleighRitz principle and gives a systematic method of improving the trial function.
 Publication:

Physical Review
 Pub Date:
 August 1957
 DOI:
 10.1103/PhysRev.107.1145
 Bibcode:
 1957PhRv..107.1145H