Citation:
ZOU Jing-Xiang, SHEN Jun, XU En-Hua, FANG Tao, LI Shu-Hua. Multireference Perturbation Theory and Multireference Coupled Cluster Theory Based on the “Block-Correlation” Framework[J]. Acta Physico-Chimica Sinica,
;2017, 33(7): 1277-1287.
doi:
10.3866/PKU.WHXB2017040702
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Well-developed conventional single-reference electron-correlation methods usually fail to describe the dissociation of covalent bonds, di(or poly)radical systems or electronic structures of the excited states. Based on a multi-determinantal wave function, recently emerged multireference perturbation theories and coupled cluster theories can give drastically improved results; however, there is still no satisfactory scheme so far. In this monograph, alternative multireference perturbation theories and coupled cluster theories based on the "block-correlation" framework has been introduced and illustrated in detail, together with proper comparisons with other common electron-correlation methods. Future perspectives upon multireference theories have also been briefly discussed.
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