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  • Title: Bethe ansatz approach to the Kondo effect within density-functional theory.
    Author: Bergfield JP, Liu ZF, Burke K, Stafford CA.
    Journal: Phys Rev Lett; 2012 Feb 10; 108(6):066801. PubMed ID: 22401100.
    Abstract:
    Transport through an Anderson junction (two macroscopic electrodes coupled to an Anderson impurity) is dominated by a Kondo peak in the spectral function at zero temperature. We show that the single-particle Kohn-Sham potential of density-functional theory reproduces the linear transport, despite the lack of a Kondo peak in its spectral function. Using Bethe ansatz techniques, we calculate this potential for all coupling strengths, including the crossover from mean-field behavior to charge quantization caused by the derivative discontinuity. A simple and accurate interpolation formula is also given.
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