Statistical Theory of the Atom in Momentum Space

H. Siedentop, V. von Conta

2015, v.21, Issue 3, 433-448


We investigate the momentum energy functional for atoms found by
Englert \cite{Englert1992} who also discussed the relation to the
Thomas\tire Fermi functional. We prove that the momentum functional
yields upon minimization the same value as the well-known
Thomas\tire Fermi functional. In fact, we show an explicit relation
between the minimizers of the functionals. Moreover, it turns out
that the atomic momentum density converges on the scale $Z^{2/3}$ to
the minimizer of the momentum energy functional.

Keywords: statistical theory in momentum space, asymptotic behavior of the momentum density


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