Exact Ground State of Strongly Correlated Electron Systems from Symmetry-Entangled Wave-Functions
classification
❄️ cond-mat.str-el
keywords
exactcalculatedconsideredcontrastcorrelateddeterminantdiagonalisationelectron
read the original abstract
The four-site Hubbard model is considered from the exact diagonalisation and variational method points of view. It is shown that the exact ground-state can be recovered by a symmetry projected Slater determinant, irrespective of the interaction strength. This is in contrast to the Gutzwiller wave-function, which is calculated as well.
This paper has not been read by Pith yet.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.