Reference : Hanbury Brown--Twiss Correlations and Noise in the Charge Transfer Statistics through...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Hanbury Brown--Twiss Correlations and Noise in the Charge Transfer Statistics through a Multiterminal Kondo Dot
Schmidt, Thomas mailto [University of Freiburg > Physikalisches Institut]
Komnik, A. [> >]
Gogolin, A. O. [> >]
Phys. Rev. Lett.
[en] 72.10.Fk ; 72.15.Qm ; 73.23.-b ; 73.63.-b
[en] We analyze the charge transfer statistics through a quantum dot in the Kondo regime, when coupled to an arbitrary number of terminals N. Special attention is paid to current cross correlations between concurring transport channels, which show distinct Hanbury Brown?Twiss antibunching for N>2 reflecting the fermionic nature of charge carriers. While this effect weakens as one moves away from the Kondo fixed point, a new type of correlations between nonconcurring channels emerges which are due entirely to the virtual polarization of the Kondo singlet. As these are not obscured by the background from fixed-point correlations they provide a promising means for extracting information on the parameters of the underlying Fermi-liquid model from the experimental data.

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