Sharif Digital Repository

Except of few cases the exact, analytic forms of most applicable many-body Hamiltonian ground-states are unknown. Our knowledge in most cases come through computer-based simulations. In recent years a well-structured method has been developed to derive an analytic form for spin Hamiltonian ground-states. ?is method through whi? an analytical fully-factorized ground-state can be derived for many-spin Hamiltonians is independent of the model structure and has unique procedure for any spin Hamiltonian. ?e fully-factorized ground state whi? has been developed, minimizes the energy of the Hamiltonian by minimizing ea? pair-interaction in the Hamiltonian. However, this approval can not be...