un 1 99 9 Exact results for the one dimensional periodic Anderson model at finite U
نویسنده
چکیده
We present exact results for the periodic Anderson model for finite Hubbard interaction 0 ≤ U < ∞ on certain restricted domains of the model’s phase diagram, in d = 1 dimension. Decomposing the Hamiltonian into positive semidefinite terms we find two quantum states to be ground state, an insulating and a metallic one. The ground state energy and several ground state expectation values are calculated.
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