https://doi.org/10.1140/epjd/e2015-50818-0
Regular Article
On dipositronium and molecular hydrogen: similarities and differences
1
Departamento de Química, and Centro de Química, Universidade de
Coimbra, 3004-535
Coimbra,
Portugal
2
CFC, Departamento de Física, Universidade de
Coimbra, 3004-516
Coimbra,
Portugal
3
Departamento de Física, Universidade da Beira
Interior, 6201-001
Covilhã,
Portugal
a e-mail: varandas@uc.pt
Received:
24
October
2014
Received in final form:
28
December
2014
Published online:
21
April
2015
The stability and other properties of the dipositronium molecule are discussed. It is pointed out that the dipositronium binding energy may be explained on the basis of a simplified model which satisfies the important requirement of providing a consistent description of the “atoms” and “molecule” of positronium. The importance of correlations in positronium and dipositronium is analyzed. In comparing positronium and dipositronium with atomic and molecular hydrogen, a remarkable parallelism is identified but also significant differences.
Key words: Molecular Physics and Chemical Physics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2015
