The Multi-Electron Problem in Molecular Physics and Quantum Chemistry
In this chapter, we shall meet up with some approaches to treating the multi- or many-electron problem in molecular physics and quantum chemistry. Among them are the Slater determinant approach and the Hartree-Fock equations to which it leads, which we will discuss for both closed and open electronic shells. An important concept is the correlation energy between electrons, and we will introduce several general methods for dealing with it.
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