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Quantum Monte Carlo facing the Hartree-Fock symmetry dilemma: The case of hydrogen rings
Quantum Monte Carlo Hartree-Fock hydrogen rings
2011/8/5
Abstract: When using Hartree-Fock (HF) trial wave functions in quantum Monte Carlo calculations, one faces, in case of HF instabilities, the HF symmetry dilemma in choosing between the symmetry-adapte...
Quaternion-Octonion SU(3) Flavor Symmetry
SU(3) Quaternions Octonions and Gell Mann matrices
2011/8/3
Abstract: Starting with the quaternionic formulation of isospin SU(2) group, we have derived the relations for different components of isospin with quark states. Extending this formalism to the case o...
Chiral symmetry breaking revisited: the gap equation with lattice ingredients
Chiral symmetry breaking Gluon and ghost propagators Schwinger-Dyson equations dynamical gluon mass generation
2011/1/14
We study chiral symmetry breaking in QCD, using as ingredients in the quark gap equation recent lattice results for the gluon and ghost propagators.