Comment on “Scattering length for fermionic alkali atoms"
by S. Gautam and D. Angom, Eur. Phys. J. D 56, 173–179 (2010)
Centre de Recherche sur les Ions, les Matériaux et la
Photonique, UMR CEA-CNRS-ENSICAEN-Université Caen Basse Normandie 6252, BP 5133, 14070 Caen, France
2 Department of Computing Science, University of Glasgow, Glasgow, G12 8QQ, UK
Corresponding author: email@example.com
Published online: 16 March 2010
We suggest that Gautam and Angom [Eur. Phys. J. D 56, 173 (2010)] underestimated the influence of the van der Waals dispersion forces at long range on their calculated low energy scattering parameters and we provide numerical evidence in support. We also provide a simple proof of the relation between s-wave and p-wave scattering parameters and we comment briefly on the semiclassical formula derived by these authors.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010