English

Solving a two-electron quantum dot model in terms of polynomial solutions of a Biconfluent Heun Equation

Quantum Physics 2021-10-19 v2 Mesoscale and Nanoscale Physics Strongly Correlated Electrons Mathematical Physics math.MP

Abstract

The effects on the non-relativistic dynamics of a system compound by two electrons interacting by a Coulomb potential and with an external harmonic oscillator potential, confined to move in a two dimensional Euclidean space, are investigated. In particular, it is shown that it is possible to determine exactly and in a closed form a finite portion of the energy spectrum and the associated eigeinfunctions for the Schr\"odinger equation describing the relative motion of the electrons, by putting it into the form of a biconfluent Heun equation. In the same framework, another set of solutions of this type can be straightforwardly obtained for the case when the two electrons are submitted also to an external constant magnetic field.

Keywords

Cite

@article{arxiv.1308.0815,
  title  = {Solving a two-electron quantum dot model in terms of polynomial solutions of a Biconfluent Heun Equation},
  author = {F. Caruso and J. Martins and V. Oguri},
  journal= {arXiv preprint arXiv:1308.0815},
  year   = {2021}
}

Comments

17 pages, 4 figures