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Communication Dans Un Congrès Année : 2005

Hanbury Brown–Twiss noise correlations to probe the Statistics of GHz Photons emitted by quantum conductors

Résumé

In microwave current noise power measurements, a detector is used which measures the power emitted by the device in the external circuit. This power can be viewed as a flux of (microwave) photons. An interesting question is the nature of the photon statistics associated with the noise power. While for thermal noise one expects classical photon statistics (Bose-Einstein), recently it has been shown theoretically that shot noise may lead to non-classical photon statistics. We propose an original cryogenic experimental scheme to characterize the statistics of photons emitted by conductors at GHz frequency. The experiments, a microwave analog of optical Hanbury Brown Twiss photon correlations, is able to distinguish the statistics of the black-body radiation associated with thermal electronic noise from the statistics of a coherent monochromatic microwave source. The experiments displays the sensitivity required for future investigations of non classical photons emitted by quantum conductors.
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Dates et versions

hal-00016660 , version 1 (26-01-2006)

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Christian D.C. Glattli, Julien Gabelli, Laure-Hélène Reydellet, Gwendal Fève, Jean-Marc Berroir, et al.. Hanbury Brown–Twiss noise correlations to probe the Statistics of GHz Photons emitted by quantum conductors. 18th International Conference on Noise and Fluctuations ICNF 2005, 2005, Salamanque, Spain. pp.466, ⟨10.1063/1.2036794⟩. ⟨hal-00016660⟩
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