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Transmission phase shifts of Kondo impurities
Physical Review B
We study the coherent properties of transmission through Kondo impurities, by considering an open Aharonov-Bohm ring with an embedded quantum dot. We develop a novel many-body scattering theory which enables us to calculate the conductance through the dot, the transmission phase shift, and the normalized visibility, in terms of the single-particle T-matrix. For the single-channel Kondo effect, we find at temperatures much below the Kondo temperature T_K that the transmission phase shift is π/2doi:10.1103/physrevb.86.115129 fatcat:7u5jgohv7jdopfa36fcj5kg564