The Hartree equation is a key element in the field of quantum mechanics, particularly in the study of many-body systems. It is part of the Hartree method, which is an approximation method used to solve the time-independent Schrödinger equation for a system of interacting particles, typically electrons in atoms or molecules. In the Hartree method, the many-body wave function is approximated as a product of single-particle wave functions (orbitals).
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