# On the size-consistency of the reduced-density-matrix method and the unitary invariant diagonal N-representability conditions

@article{Nakata2011OnTS, title={On the size-consistency of the reduced-density-matrix method and the unitary invariant diagonal N-representability conditions}, author={Maho Nakata}, journal={AIP Advances}, year={2011}, volume={2}, pages={032125} }

A promising variational approach for determining the ground state energy and its properties is by using the second-order reduced density matrix (2-RDM). However, the leading obstacle with this approach is the N-representability problem. By employing a subset of conditions (typically the P, Q, G, T1 and T2′ conditions) results comparable to those of CCSD(T) can be achieved. However, these conditions do not guarantee size-consistency. In this work, we show that size-consistency can be satisfied…

## 11 Citations

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