Confined states of a positronium in a spherical quantum dot
نویسندگان
چکیده
منابع مشابه
Theory of confined states of positronium in spherical and circular quantum dots with Kane’s dispersion law
Confined states of a positronium (Ps) in the spherical and circular quantum dots (QDs) are theoretically investigated in two size quantization regimes: strong and weak. Two-band approximation of Kane's dispersion law and parabolic dispersion law of charge carriers are considered. It is shown that electron-positron pair instability is a consequence of dimensionality reduction, not of the size qu...
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Effects of quantum size and potential shape on the spectra of an electron and a hydrogenic-donor at the center of a permeable spherical cavity have been calculated, using linear variational method. B-splines have been used as basis functions. By extensive convergence tests and comparing with other results given in the literature, the validity and efficiency of the method were confirmed.
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ژورنال
عنوان ژورنال: Physica B: Condensed Matter
سال: 2012
ISSN: 0921-4526
DOI: 10.1016/j.physb.2011.10.002