English

Entropic functionals of Laguerre and Gegenbauer polynomials with large parameters

Mathematical Physics 2017-05-24 v1 math.MP

Abstract

The determination of the physical entropies (R\'enyi, Shannon, Tsallis) of high-dimensional quantum systems subject to a central potential requires the knowledge of the asymptotics of some power and logarithmic integral functionals of the hypergeometric orthogonal polynomials which control the wavefunctions of the stationary states. For the DD-dimensional hydrogenic and oscillator-like systems, the wavefunctions of the corresponding bound states are controlled by the Laguerre (Lm(α)(x)\mathcal{L}_{m}^{(\alpha)}(x)) and Gegenbauer (Cm(α)(x)\mathcal{C}^{(\alpha)}_{m}(x)) polynomials in both position and momentum spaces, where the parameter α\alpha linearly depends on DD. In this work we study the asymptotic behavior as α\alpha \to \infty of the associated entropy-like integral functionals of these two families of hypergeometric polynomials.

Keywords

Cite

@article{arxiv.1705.03627,
  title  = {Entropic functionals of Laguerre and Gegenbauer polynomials with large parameters},
  author = {N. M. Temme and I. V. Toranzo and J. S. Dehesa},
  journal= {arXiv preprint arXiv:1705.03627},
  year   = {2017}
}