Hanbury-Brown Twiss correlations to probe the population statistics of GHz photons emitted by conductors

Details Hanbury-Brown Twiss correlations to probe the population statistics of GHz photons emitted by conductors Hanbury-Brown Twiss correlations to probe the population statistics of GHz photons emitted by conductors

2004-03-23

arxiv.org/abs/cond-mat/0403584v1

Physical Review Letters 93 (2004) 056801

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

soumis le 22 mars 2004

Scientific paper

10.1103/PhysRevLett.93.056801

We present the first study of the statistics of GHz photons in quantum circuits, using Hanbury-Brown and Twiss correlations. The superpoissonian and poissonian photon statistics of thermal and coherent sources respectively made of a resistor and a radiofrequency generator are measured down to the quantum regime at milliKelvin temperatures. As photon correlations are linked to the second and fourth moments of current fluctuations, this experiment, which is based on current cryogenic electronics, may become a standard for probing electron/photon statistics in quantum conductors

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