Effective su_q(2) models and polynomial algebras for fermion-boson Hamiltonians

Angel Ballesteros, Osvaldo Civitarese, Francisco J. Herranz +1

Schematic su(2)+h3 interaction Hamiltonians, where su(2) plays the role of the pseudo-spin algebra of fermion operators and h3 is the Heisenberg algebra for bosons, are shown to be…