Density-functional theory of positronium and electron bubbles in helium fluids

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
1980
Major/Subject
Mcode
Degree programme
Language
en
Pages
1677-1686
Series
Physical Review A, Volume 21, Issue 5
Abstract
The density-functional method is applied to excess electrons and positronium atoms in helium fluids. The self-trapping is investigated in a fully self-consistent fashion, and formulas are given for the particle energy and Ps pick-off annihilation rate in quasifree as well as localized states. The numerical results compare well with experimental data. However, the need for a more sophisticated treatment of threshold effects near the onset of bubble formation is indicated.
Description
Keywords
helium fluids, electron bubbles, positronium atoms
Other note
Citation
Nieminen, Risto M. & Välimaa, I. & Manninen, M. & Hautojärvi, P. 1980. Density-functional theory of positronium and electron bubbles in helium fluids. Physical Review A. Volume 21, Issue 5. 1677-1686. ISSN 1050-2947 (printed). DOI: 10.1103/physreva.21.1677.