Articulo
Prony's method and the connected-moments expansion
Autor
Fernández, Francisco Marcelo
Institución
Resumen
We show that Prony's method provides the full solution to the nonlinear equations of the connected-moments expansion (CMX). Knowledge of all the parameters in the CMX ansatz is useful for the analysis of the convergence properties of the approach. Prony's method may also be suitable for the calculation of the correlation function for simple quantum-mechanical models. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas