Cusp relation for the Pauli potential

Abstract

<p> In orbital-free density functional theory, only a Schr&ouml;dinger-like equation has to be solved for the square root of the electron density. In this equation, however, there is an extra potential in addition to the Kohn-Sham potential, the so-called Pauli potential. Cusp relations are now presented for this Pauli potential for spherically symmetric systems.</p>