Polarizability and optical rotation calculated from the approximate coupled cluster singles and doubles CC2 linear response theory using cholesky decompositions

Cholesky decomposition of the two-electron integrals was used for analyzing the linear response function at the CC2 level of theory. The large-scale applicability of the Cholesky-based algorithm was demonstrated by calculating the electric dipole polarizabilities. The algorithm was found to be well suited for large-scale applications by reducing storage demands and computational effort withour sacrificing accuracy compared to the conventional model. Through the decomposition threshold, the errors introduced by the Cholesky representation of two-electron integrals were controllable.