Data collapse for the Schrodinger equation

We present a data-collapse study for quantum few-body problems. Our data st rongly support a recent hypothesis for the application of the finite-size s caling approach for the calculation of the critical parameters for the few- body Schrodinger equation. We test the data collapse using very accurate ca lculations of the one-body Yukawa potential. This powerful tool is used to obtain an estimation of the critical exponents for the lithium-like atoms. (C) 2000 Elsevier Science B.V. All rights reserved.