Perturbation Expansion Of The Single‐electron Density Matrix For The Impurity Problem
A method for expanding the single‐electron density matrix is sketched by using an expansion theorem due to Schafroth for the matrix element of a general function of an operator. Copyright © 1972 John Wiley & Sons, Inc.
I. Adawi, "Perturbation Expansion Of The Single‐electron Density Matrix For The Impurity Problem," International Journal of Quantum Chemistry, vol. 6, no. 6 S, pp. 443 - 444, Wiley, Jan 1972.
The definitive version is available at https://doi.org/10.1002/qua.560060650
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01 Jan 1972