Fisher information for a two-electron 'entangled artificial' atom proposed by Moshinsky is studied. A relationship between the Fisher and the Shannon information is explored. It is shown that the Fisher information for this model is proportional to the Kullback-Leibner (or relative) information that measures the deviation of the density from a constant, the value of the density at r = 0. The Pauli kinetic energy is also determined. (c) 2006 Elsevier B.V. All rights reserved.