# Particle-particle ladder based basis-set corrections applied to atoms and molecules using coupled-cluster theory.

@article{Irmler2019ParticleparticleLB, title={Particle-particle ladder based basis-set corrections applied to atoms and molecules using coupled-cluster theory.}, author={Andreas Irmler and Andreas Gr{\"u}neis}, journal={The Journal of chemical physics}, year={2019}, volume={151 10}, pages={ 104107 } }

We investigate the basis-set convergence of electronic correlation energies calculated using coupled cluster theory and a recently proposed finite basis-set correction technique. The correction is applied to atomic and molecular systems and is based on a diagrammatically decomposed coupled cluster singles and doubles (CCSD) correlation energy. Only the second-order energy and the particle-particle ladder term are corrected for their basis-set incompleteness error. We present absolute…

## 10 Citations

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