Figure 43. Ground state energies for H (a), H+ (b), and HeH2+ (c) enclosed within penetrable spheroidal boxes as a function of box size %0. The nucleus are clamped and R = 1 a.u. The continuous lines represent the variational calculations of this subsection. The circles are the exact results for V0 = m reported in [120]. Reprinted with permission from [205], J. L. Marin et al., in "Handbook of Advanced Electronic and Photonic Materials and Devices" (H. S. Nalwa, Ed.). Academic Press, San Diego, 2001. © 2001, Academic Press.

quantities of physical interest are evaluated for the case of hydrogen.

The case of hydrogen has been thoroughly analyzed by Ley-Koo and Rubinstein [124]. Proper comparison with their

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