Research Papers in Physics and Astronomy
Static and dynamic dipole polarizability of the helium atom using wave functions involving logarithmic terms
Date of this Version
We present a calculation of the static and dynamic dipole polarizability of the helium atom using a variationally stable treatment that incorporates the coupled-channel hyperspherical representation of the wave functions. Inclusion of logarithmic terms in intermediate functions as well as the effect of an optimization procedure for the variational parameter are analyzed. When available, our coupled-channel results are compared with other values in the literature.
Published in Physical Review A 68, 012508 (2003). Copyright © 2003 The American Physical Society. Used by permission.