Abstract
A variational approach based on Maximum Entropy considerations is used for the construction of trial ground state wave functions of correlated fermion systems. Results for the one-dimensional version of the Hubbard model show that the method allows for a sensibly better evaluation of the ground state energy than the one provided by the Gutzwiller approximation, being in a good agreement with the exact values.
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Arrachea, L., Canosa, N., Plastino, A., Rossignoli, R. (1993). Information Theory-Based Variational Approach in Correlated Fermion Lattice. In: Blum, L., Malik, F.B. (eds) Condensed Matter Theories. Condensed Matter Theories, vol 8. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2934-7_28
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DOI: https://doi.org/10.1007/978-1-4615-2934-7_28
Publisher Name: Springer, Boston, MA
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