Phase-integral calculation of quantal matrix elements without the use of wavefunctions
- 1 May 1977
- journal article
- research article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 18 (5) , 903-906
- https://doi.org/10.1063/1.523358
Abstract
Simple phase‐integral formulas for the calculation, without the use wavefunctions, of quantal matrix elements of multiplicative and differential operators are given for the case of bound states in a single‐well potential. The matrix elements are obtained to within the accuracy corresponding to any conveniently chosen order of the kind of phase‐integral approximations used.Keywords
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