https://doi.org/10.1140/epjd/e2014-50251-y
Regular Article
On stability of nanoscale electron-positron droplets
Saint-Petersburg State Polytechnic University, Polytechnicheskaya
st. 29, 195251,
St. Petersburg,
Russia
a
e-mail: andreiipatov@mail.ru
Received: 26 March 2014
Received in final form: 29 May 2014
Published online: 11 September 2014
This paper presents the results of the total energy calculation for electroneutral electron-positron clusters with closed shells. The calculations were performed within the Random Phase Approximation with Exchange to take into account the many-particle correlations. The results show that the calculated energies per one electron-positron pair are lower than the corresponding energy per one pair of dipositronium molecule. The most stable electron-positron clusters are found for the cluster sizes in the interval of 20–40 pairs.
Key words: Clusters and Nanostructures
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2014
