Density-functional theory of positronium and electron bubbles in helium fluids
- 1 May 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 21 (5) , 1677-1686
- https://doi.org/10.1103/physreva.21.1677
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.Keywords
This publication has 36 references indexed in Scilit:
- Effective mass of self-trapped electrons in gasesPhysical Review B, 1979
- Self-trapping of electrons in ideal gasesPhysical Review B, 1978
- Clustering of atoms around the positron and positive ions in gaseous He, Ne, and ArPhysical Review B, 1978
- Self-trapping of ortho-positronium in dense fluid heliumPhysical Review A, 1976
- Self-trapped states of electrons in dense fluidsPhysical Review B, 1975
- New approach to the positron distribution in metals and alloysPhysical Review B, 1975
- The quenching of orthopositronium by heliumJournal of Physics B: Atomic and Molecular Physics, 1968
- The Scattering of Low Energy Ortho-positronium by Helium AtomsProceedings of the Physical Society, 1962
- The Scattering of Low-energy Ortho-positronium by Hydrogen AtomsProceedings of the Physical Society, 1961
- Annihilation of Positrons in Liquid HeliumPhysical Review B, 1957