Efficient description of strongly correlated electrons with mean-field cost Academic Article uri icon

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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.

authors

  • Boguslawski, Katharina
  • Tecmer, Paweł
  • Ayers, Paul
  • Bultinck, Patrick
  • De Baerdemacker, Stijn
  • Van Neck, Dimitri

publication date

  • May 12, 2014