Dipole polarizabilities for a hydrogen atom confined in a penetrable sphere

Benchmark numerical results on the ground and excited state eigenvalues and the ground state static and dynamic dipole polarizabilities are reported for a hydrogen atom confined at the center of a spherical box with penetrable walls. The dynamic polarizabilities are negative except when the frequency of incident radiation is below the 1s-2p transition frequency or in the frequencies immediately below a 1s-np transition. (C) 2012 Published by Elsevier B.V.