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In this letter we study the coherent electronic transport through a metallicnanowire with magnetic impurities. The spins of these impurities are consideredas frozen to mimic a low temperature spin glass phase. The transport propertiesof the wire are derived from a numerical Landauer technique which provides theconductance of the wire as a function of the disorder configuration. We showthat the correlation of conductance between two spin configurations provides ameasure of the correlation between these spin configurations. This correlationcorresponds to the mean field overlap in the absence of any spatial orderbetween the spin configurations. Moreover, we find that these conductancecorrelations are sensitive to the spatial order between the two spinconfigurations, i.e whether the spin ?ips between them occur in a compactregion or not.

Conductance correlations in a mesoscopic spin glass wire : a numerical Landauer study