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arXiv · 1401.8019

Efficient description of strongly correlated electrons with mean-field cost

Katharina Boguslawski·Paweł Tecmer·Paul W. Ayers·Patrick Bultinck·Stijn De Baerdemacker·Dimitri Van Neck
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Abstract

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. %which is based on orbital optimization of electron pairs. The performance of our approach is illustrated for the one-dimensional Hubbard model with periodic boundary conditions for different chain lengths, and for the non-relativistic quantum chemical Hamiltonian exploring the symmetric dissociation of the H$_{50}$ hydrogen chain.

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Katharina Boguslawski, Paweł Tecmer, Paul W. Ayers, Patrick Bultinck, Stijn De Baerdemacker, Dimitri Van Neck. 2014-01-30. Efficient description of strongly correlated electrons with mean-field cost. https://doi.org/10.1103/physrevb.89.201106

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