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Abstract
The correlation effect of shot noise through a quantum dot is investigated for the symmetric case at zero temperature. Employing the renormalized perturbation theory, we calculate the shot noise S h and the Fano factor F b = S h / 2 eI b for a backscattering current I b . The Fano factor is shown to have the universal form of F b = 1 + 4 ( R − 1 ) 2 / ( 1 + 5 ( R − 1 ) 2 ) with the Wilson ratio R in any strength of the Coulomb interaction.
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