central field approximation


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central field approximation

[′sen·trəl ‚fēld ə‚präk·sə′mā·shən]
(physics)
The approximation that the electrons in an atom or the nucleons in a nucleus move in the potential of a central force which is the same for all the particles.
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A method that deals with configurations is called central field approximation [5, see p.
However, even in the early days of quantum mechanics, the central field approximation has been regarded as an approximation and people have constructed mathematical tools for treating the multi-configuration atomic structure which is known as the Wigner-Racah algebra of angular momentum.

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