Local kinetic-energy density of the Airy gas

L. Vitos, B. Johansson, J. Kollár, H. L. Skriver

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The Airy gas model is used to derive an expression for the local kinetic energy in the linear potential approximation. The expression contains an explicit Laplacian term 2/5(ℏ2/2m)∇μ2(r) that, according to jellium surface calculations, must be a universal feature of any accurate local description. Applied to the noble gases the expression reduces the errors by a factor of 50 over previous results obtained by the linear potential approximation.

Original languageEnglish
Article number052511
Pages (from-to)525111-525114
Number of pages4
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume61
Issue number5
Publication statusPublished - May 2000

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Vitos, L., Johansson, B., Kollár, J., & Skriver, H. L. (2000). Local kinetic-energy density of the Airy gas. Physical Review A - Atomic, Molecular, and Optical Physics, 61(5), 525111-525114. [052511].