Virginia TechMassano, William J.Bowen, Samuel P.Mancini, Jay D.2014-04-252014-04-251989-04Massano, W. J.; Bowen, S. P.; Mancini, J. D., "application of the connected-moment expansion to single-impurity Anderson Hamiltonians," Phys. Rev. A 39, 4301 (1989); DOI: http://dx.doi.org/10.1103/PhysRevA.39.43011050-2947http://hdl.handle.net/10919/47701We use the connected-moment expansion, recently developed by Cioslowski [Phys. Rev. Lett. 58, 83 (1987)], to investigate the ground-state energy of the single-impurity Anderson model. It is found that the moment expansion obtained for this Hamiltonian is not a Stieltjes series and thus does not provide a useful method for estimating ground-state energies.en-USIn CopyrightArticle - Refereedhttp://journals.aps.org/pra/abstract/10.1103/PhysRevA.39.4301https://doi.org/10.1103/PhysRevA.39.4301