PADE APPROXIMANTS FOR THE GROUND-STATE ENERGY OF CLOSED-SHELL QUANTUMDOTS

Authors
GONZALEZ A PARTOENS B PEETERS FM
Citation
A. Gonzalez et al., PADE APPROXIMANTS FOR THE GROUND-STATE ENERGY OF CLOSED-SHELL QUANTUMDOTS, Physical review. B, Condensed matter, 56(24), 1997, pp. 15740-15743
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
24
Year of publication
1997
Pages
15740 - 15743
Database
ISI
SICI code
0163-1829(1997)56:24<15740:PAFTGE>2.0.ZU;2-U
Abstract
Analytic approximations to the ground-state energy of closed-shell qua ntum dots (number of electrons from 2 to 210) are presented in the for m of two-point Pade approximants. These Padi approximants are construc ted from the small- and large-density limits of the energy. We estimat ed that the maximum error, reached for intermediate densities, is less than or equal to 3%. Within the present approximation the ground stat e is found to be unpolarized. [S0163-1829(97)00347-0].