What Does CISC Stand For?

CISC stands for Configuration Interaction With Size Consistency Correction

CISC, or Configuration Interaction With Size Consistency Correction, is a computational method in quantum chemistry that enhances the accuracy of electronic structure calculations. It addresses the limitations of traditional configuration interaction approaches by ensuring that the results remain consistent as the size of the molecular system increases. This method effectively corrects for size inconsistency, providing more reliable energy predictions and wave function descriptions, particularly for systems with strong electron correlation effects. CISC is widely used in the study of complex molecular interactions and reactions.