Analytical and algebraic solutions of the rotating Morse oscillators: Matrix elements of arbitrary powers of (r-re)lexp[-ma(r-re)]
A. López-Pieiro,B. Moreno;A. López-Pieiro;B. Moreno;
physical review a1990Vol. 41pp. 1444-1449
110
moreno1990physicalanalytical
Abstract
Analytical expressions for the matrix elements 〈v’J‖(r-re)lexp[-ma(r-re) ]‖vJ〉 of a rotating Morse oscillator are obtained, where l is a non-negative integer and m is any number. These matrix elements are also obtained by a recursive method that obviates the need for using explicit eigenfunctions. This procedure is based on the hypervirial theorem together with the second-quantization formalism. The results permit the diagonal (v=v’,J=J’) and off-diagonal (v≠v’,J=J’) matrix elements of the operator (r-re)l to be calculated.