Department of Optics, Palacký University, Olomouc, Czech Republic.
Phys Rev Lett. 2011 Nov 18;107(21):213602. doi: 10.1103/PhysRevLett.107.213602. Epub 2011 Nov 15.
We report on the experimental verification of quantum non-Gaussian character of a heralded single-photon state with a positive Wigner function. We unambiguously demonstrate that the generated state cannot be expressed as a mixture of Gaussian states. Sufficient information to witness the quantum non-Gaussian character is obtained from a standard photon anticorrelation measurement.
我们报告了实验验证的单光子态的量子非高斯特性与一个有信号的单光子态的正威格纳函数。我们明确地证明了所产生的状态不能表示为高斯态的混合物。从标准的光子反关联测量中获得了足以见证量子非高斯特性的信息。
