作者: Henrik Koch , Ove Christiansen , Rika Kobayashi , Poul Jørgensen , Trygve Helgaker
DOI: 10.1016/0009-2614(94)00898-1
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摘要: The coupled cluster singles and doubles (CCSD) model has been implemented using a direct atomic integral driven technique. integrals are generated in distributions with one fixed three free indices, distribution is stored fast memory together the amplitudes vector function. Little loss efficiency obtained compared to molecular orbital Sample calculations presented for HFCO containing 328 basis functions.