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http://hdl.handle.net/2289/7123| Title: | The correlated Hartree-Fock equations and the generalised density matrices |
| Authors: | Viswanathan, K.S. |
| Keywords: | Density Matrice Slater Determinant Correlation Factor Helium Atom Energy Matrix |
| Issue Date: | Apr-1961 |
| Publisher: | Indian Academy of Sciences |
| Citation: | Proceedings of the Indian Academy of Sciences A, 1961, Vol.53, p169-194 |
| Abstract: | The paper deals with a study of correlation effects in many-electron systems. Coulomb correlation is introduced into the theory by multiplying the Slater determinant formed from the one-electron orbitals by a correlation factor which is a symmetric and increasing function of the inter-electronic distances. The integro-differential equations satisfied by the best one-electron orbitals have been been deduced for non-stationary systems. From the extended Hartree-Fock equations given by Löwdin, the integro-differential equations satisfied by the density matrices have been derived. An expression for the energy-matrix of the system which is helpful in deriving a correlated Thomas-Fermi charge distribution, has also been given. |
| Description: | Open Access |
| URI: | http://hdl.handle.net/2289/7123 |
| Alternative Location: | https://www.ias.ac.in/article/fulltext/seca/053/04/0169-0194 |
| Copyright: | Indian Academy of Sciences |
| Appears in Collections: | Research Papers |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1961_ProIASc. 53, 169_KVS.pdf | Open Access | 950.45 kB | Adobe PDF | View/Open |
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