On the upper bound of the electronic kinetic energy in terms of density functionals

Details On the upper bound of the electronic kinetic energy in terms of density functionals On the upper bound of the electronic kinetic energy in terms of density functionals

2005-04-08

arxiv.org/abs/quant-ph/0504055v1

J. Phys. A: Math. Gen. 38 (2005) 7893-7899

Physics

Quantum Physics

10 pages, no figures

Scientific paper

10.1088/0305-4470/38/36/007

We propose a simple density functional expression for the upper bound of the kinetic energy for electronic systems. Such a functional is valid in the limit of slowly varying density, its validity outside this regime is discussed by making a comparison with upper bounds obtained in previous work. The advantages of the functional proposed for applications to realistic systems is briefly discussed.

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