title: Bethe ansatz approach to the Kondo effect within density-functional theory.
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.
authors.affiliation: Department of Chemistry, University of California, Irvine, California 92697, USA.
authors.forename: Justin P
authors.initials: JP
authors.lastname: Bergfield
authors.forename: Zhen-Fei
authors.initials: ZF
authors.lastname: Liu
authors.forename: Kieron
authors.initials: K
authors.lastname: Burke
authors.forename: Charles A
authors.initials: CA
authors.lastname: Stafford