On spectroscopic structure of two interacting electrons in a quantum dot

Details On spectroscopic structure of two interacting electrons in a quantum dot On spectroscopic structure of two interacting electrons in a quantum dot

2001-02-07

arxiv.org/abs/cond-mat/0102125v2

Czech. J. Phys. 53, 433 (2003)

Physics

Condensed Matter

Soft Condensed Matter

14 pages, Latex file, 1 ps figures, to appear in the Czech J Phys

Scientific paper

The shifted 1/N expansion technique, used by El-Said (Phys. Rev. B 61, 13026 (2000)), to study the relative Hamiltonian of two interacting electrons confined in a quantum dot, is investigated. El-Said's results from SLNT are revised and results from an alternative method are also reported. The distinctive role of the central spike term, $(m^2-1/4)/q^2$, in determinig the spectral properties of the above problem is shown, moreover.

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