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

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

1999-06-09

arxiv.org/abs/cond-mat/9906129v1

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 4 figures

Scientific paper

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.

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