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- W3140850877 abstract "In this contribution, we present the implementation of a second-order CASSCF algorithm in conjunction with the Cholesky decomposition of the two-electron repulsion integrals. The algorithm, called Norm-Extended Optimization, guarantees convergence of the optimization, but it involves the full Hessian of the wavefunction and is therefore computationally expensive. Coupling the second-order procedure with the Cholesky decomposition leads to a significant reduction in the computational cost, reduced memory requirements, and an improved parallel performance. As a result, CASSCF calculations of larger molecular systems become possible as a routine task. The performance of the new implementation is illustrated by means of benchmark calculations on molecules of increasing size, with up to about 3000 basis functions and 14 active orbitals." @default.
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- W3140850877 date "2021-04-08" @default.
- W3140850877 modified "2023-10-01" @default.
- W3140850877 title "A Second-Order CASSCF Algorithm with the Cholesky Decomposition of the Two-Electron Integrals" @default.
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