Optical conductivity of the two-dimensio
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W. Brenig
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Article
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1993
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Elsevier Science
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English
โ 175 KB
We analyze the optical conductivity of the two-dimensional Hubbard model using the projection technique. The current self-energy and the static current susceptibility are evaluated perturbatively applying a novel real space summation technique. Results for the Drude weight and the incoherent spectru