Speaker
Mr
Alexandre Leprévost
(Laboratoire de Physique Corpusculaire de Caen - Université de Caen)
Description
The four site Hubbard model is considered from the exact diagonalization and variational
method points of view. We show that a symmetry projected mean-field theory recovers
the exact ground state energy, irrespective of the interaction strength, in contrast to
the conventional Gutzwiller wave-function that will be also considered.
Primary author
Mr
Alexandre Leprévost
(Laboratoire de Physique Corpusculaire de Caen - Université de Caen)
