Quantum chemistry using the density matrix renormalization group

被引:133
作者
Mitrushenkov, AO [1 ]
Fano, G
Ortolani, F
Linguerri, R
Palmieri, P
机构
[1] St Petersburg State Univ, Dept Theoret Phys, Inst Phys, St Petersburg 198904, Russia
[2] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy
[3] Univ Bologna, Dipartimento Chim Fis & Inorgan, I-40136 Bologna, Italy
[4] Univ Bologna, Ctr Comp, CINECA, I-40126 Bologna, Italy
关键词
D O I
10.1063/1.1389475
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new implementation of the density matrix renormalization group is presented for ab initio quantum chemistry. Test computations have been performed of the dissociation energies of the diatomics Be-2, N-2, HF. A preliminary calculation on the Cr-2 molecule provides a new variational upper bound to the ground state energy. (C) 2001 American Institute of Physics.
引用
收藏
页码:6815 / 6821
页数:7
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