Efficient description of strongly correlated electrons with mean-field cost

被引：107
|
作者：
Boguslawski, Katharina [1 ]
Tecmer, Pawel [1 ]
Ayers, Paul W. [1 ]
Bultinck, Patrick [2 ]
De Baerdemacker, Stijn [3 ]
Van Neck, Dimitri [3 ]
机构：
[1] McMaster Univ, Dept Chem & Chem Biol, Hamilton, ON L8S 4M1, Canada
[2] Univ Ghent, Dept Inorgan & Phys Chem, B-9000 Ghent, Belgium
[3] Univ Ghent, Ctr Mol Modelling, B-9052 Ghent, Belgium
来源：
PHYSICAL REVIEW B | 2014年 / 89卷 / 20期
基金：
瑞士国家科学基金会; 加拿大自然科学与工程研究理事会;
关键词：
MATRIX RENORMALIZATION-GROUP; WAVE-FUNCTIONS; NONORTHOGONAL GEMINALS; ANTISYMMETRIC PRODUCTS; QUANTUM-CHEMISTRY; ENTANGLEMENT; CLUSTER; ORBITALS;
D O I：
10.1103/PhysRevB.89.201106
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present an efficient approach to the electron correlation problem that is well suited for strongly interacting many-body systems, but requires only mean-field-like computational cost. The performance of our approach is illustrated for one-dimensional Hubbard rings with different numbers of sites, and for the nonrelativistic quantum-chemical Hamiltonian exploring the symmetric dissociation of the H-50 hydrogen chain.
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页数：4
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