Gabelli J, Reydellet L-H, Fève G, Berroir J-M, Plaçais B, Roche P, Glattli D C
Laboratoire Pierre Aigrain, Département de Physique de l'Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France.
Phys Rev Lett. 2004 Jul 30;93(5):056801. doi: 10.1103/PhysRevLett.93.056801. Epub 2004 Jul 27.
We present the first study of the statistics of GHz photons in quantum circuits, using Hanbury Brown and Twiss correlations. The super-Poissonian and Poissonian photon statistics of thermal and coherent sources, respectively, made of a resistor and a radio frequency generator, are measured down to the quantum regime at milli-Kelvin 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.
我们利用汉伯里·布朗和特威斯关联，首次对量子电路中吉赫兹光子的统计特性进行了研究。分别由电阻器和射频发生器构成的热光源和相干光源的超泊松分布和泊松分布光子统计特性，在毫开尔文温度下被测量至量子区域。由于光子关联与电流涨落的二阶和四阶矩相关联，这个基于当前低温电子学的实验，可能会成为探测量子导体中电子/光子统计特性的标准方法。
