Journal
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL
Volume 38, Issue 36, Pages 7893-7899Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0305-4470/38/36/007
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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 the previous work. The advantages of the functional proposed for applications to realistic systems are briefly discussed.
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