The Configuration Interaction Expansion Is the Exact Solution of the Electronic Schrödinger Equation
José A. Sordo
Laboratorio de Química Computacional, Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Principado de Asturias, Spain
It is demonstrated that the configuration interaction method provides the exact solution of the time-independent Schrödinger equation within Born–Oppenheimer approximation and neglecting relativistic effects.
Supplement
The mathematical derivation for the configuration interaction method is available.
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