Spin-adapted reduced Hamiltonian in view of the spectral-distribution method
- 1 April 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 37 (7) , 2709-2711
- https://doi.org/10.1103/physreva.37.2709
Abstract
Recently, Karwowski, Duch, and Valdemoro have developed a method for constructing a matrix representation of a spin-adapted reduced Hamiltonian based on evaluation of traces of occupation number operators over finite spaces of many electrons being coupled to a definite spin S. We show that the spectral-distribution method, used in nuclear physics, leads to a unified and general reduction formula for the fixed-S traces.Keywords
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