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Pré-Publication, Document De Travail Année : 2006

Measurement of finite frequency noise cross-correlations with a resonant circuit

Résumé

The measurement of finite frequency noise cross-correlations represents an experimental challenge in mesoscopic physics. Here we propose a generalisation of the resonant LC circuit setup of Lesovik and Loosen which allow to probe directly such cross-correlations by measuring the charge fluctuations on the plates of a capacitor. The measuring circuit collects noise contributions at the resonant frequency of the LC circuit. Auto-correlation noise can be canceled out by switching the wires and making two distinct measurements. The measured cross-correlations then depend of four non-symmetrized correlators. This detection method is applied to a normal metal three terminal device. We subsequently discuss to what extent the measurement circuit can detect electron-antibunching and what singularities appear in the spectral density of noise cross-correlations.
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Dates et versions

hal-00007730 , version 1 (29-07-2005)
hal-00007730 , version 2 (18-03-2006)
hal-00007730 , version 3 (12-05-2006)

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Marjorie Creux, Adeline Crépieux, Thierry Martin. Measurement of finite frequency noise cross-correlations with a resonant circuit. 2006. ⟨hal-00007730v2⟩
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