Energy spectra of two electrons in a circular quantum dot

Details Energy spectra of two electrons in a circular quantum dot Energy spectra of two electrons in a circular quantum dot

2002-05-30

arxiv.org/abs/quant-ph/0205186v2

Physics

Quantum Physics

10 pages, revised version

Scientific paper

The electron interaction energy of two interacting electrons in a circular quantum dot (with hard wall confinement) is investigated in the framework of the semi-classical Wentzel-Kramers-Brillouin (WKB) approximation. The two electrons are assumed to be in an infinitely deep well of radius $r_0$, in a simple configuration with one electron fixed at the origin. The corresponding Schrodinger equation, with hard wall boundary conditions, is also solved exactly by numerical integration. It is observed that the agreement between the two energy values is quite good, suggesting that the WKB approximation works well for such a confined quantum system as well. This may provide motivation to extend this to more realistic confined potentials.

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