Abstract
Consider an atom with Z protons in its nucleus and with Z outer electrons (the atomic number of the atom is Z). In the central-field approximation, atomic electrons are assumed to be independent of one another. The Hamiltonian of the ith atomic electron is given by
which has the eigenstates
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References
See, for example, R.L. Liboff, Introductory Quantum Mechanics, 4th ed. Addison-Wesley, San Francisco, CA (2002), Table 10.3.
See, for instance, D.M. Bishop, Group Theory and Chemistry (see Bibliography).
For further discussion see, A.F. Cotton, Chemical Applications of Group Theory, 3rd ed., ipid (see Bibliography); D.M. Bishop, Group Theory and Chemistry (see Bibliography); B.N. Figgis, Introduction to Ligand Fields (see Bibliography).
For further discussion, see J.D. Jackson, Classical Electrodynamics, 3rd ed., Wiley, New York (1999).
A similar situation occurs in quantum mechanics. The coupled spin states of three electrons are combinations of the tensor forms F ijk = α i β j γ k where α i is, say, the spin state of the ‘α’ electron and (i, j, k) = 1,2. So F ijk is a tensor with r = 3 and n = 2. It is known that antisymmetric coupled spin states of three or more electrons do not exist. [See, R.L. Liboff, Am. J. Physics 52, 561 (1984).]
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© 2004 Springer-Verlag New York, Inc.
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Liboff, R.L. (2004). Atoms in Crystals and Correlation Diagrams. In: Primer for Point and Space Groups. Undergraduate Texts in Contemporary Physics. Springer, New York, NY. https://doi.org/10.1007/978-1-4684-9383-2_6
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