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Soft confining potentials<br />
1 3 5 7<br />
r (a.u.)<br />
1 3 5 7<br />
r (a.u.)<br />
• Better basis, variationally, & other results<br />
• Removes the discontinuity in the derivative<br />
J. Junquera, O. Paz, D. Sanchez-Portal & E. Artacho, Phys. Rev. B, 64, 235111 (2001)<br />
E. Anglada, J. M. Soler, J. Junquera & E. Artacho, Phys. Rev. B 66, 205101 (2002)