Self-energy of a positronium atom near a metal surface

Pathak, K. N. ; Jindal, V. K. ; Paranjape, V. V. (1988) Self-energy of a positronium atom near a metal surface Physical Review B: Condensed Matter and Materials Physics, 37 (18). pp. 10891-10894. ISSN 1098-0121

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The attractive interaction energy between a positronium atom and a metal surface has been numerically evaluated using our earlier-derived expression. In this derivation the interaction energy is obtained by considering the multipolar excitations of the positronium atom and excitations of the surface plasmons. It is shown that the interaction energy saturates to a constant value at the surface, and near the surface the interaction energy is considerably weaker than that given by the well-known semiclassical Lifshitz result.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:55961
Deposited On:22 Aug 2011 13:02
Last Modified:22 Aug 2011 13:02

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