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Exact results for the one dimensional periodic Anderson model at finite U

We present exact results for the periodic Anderson model for finite Hubbard interaction 0 <= U < +infinity 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.

preprint1999arXivOpen access
Ivan OrlikZsolt Gulacsi
cond-mat.str-el
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Ivan OrlikZsolt Gulacsi

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