【摘 要】
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In this work,we set up the Density-Matrix Renormalization Group(DMRG)interface in MOLCAS package.With the DMRG interface,MOLCAS can handle a much larger act
【机 构】
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ETH Zürich,Laboratorium für Physikalische Chemie,CH-8093 Zürich,Switzerland
论文部分内容阅读
In this work,we set up the Density-Matrix Renormalization Group(DMRG)interface in MOLCAS package.With the DMRG interface,MOLCAS can handle a much larger active space(e.g,40 electrons in 40 orbitals)than that of the standard Full Configuration Iteration(FCI)method(at most 18 electrons in 18 orbitals).At this stage,we already combined the DMRG with the “RASSCF” module in MOLCAS,so that one can use MOLCAS to do single-point DMRG-SCF calculations with or without state-averaged(SA)treatment,as well as geometry optimization with state-specific(SS)DMRG-SCF [1].
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