On stability of nanoscale electron-positron droplets

被引：4
|
作者：
Ipatov, Andrey N. [1 ]
Ivanov, Vadim K. [1 ]
Polozkov, Roman G. [1 ]
机构：
[1] St Petersburg State Polytech Univ, St Petersburg 195251, Russia
来源：
EUROPEAN PHYSICAL JOURNAL D | 2014年 / 68卷 / 09期
关键词：
METAL-CLUSTERS; SEMICONDUCTORS;
D O I：
10.1140/epjd/e2014-50251-y
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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.
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页数：6
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