论文标题
从少数Fock州概率中检测非古典性检测
Nonclassicality detection from few Fock-state probabilities
论文作者
论文摘要
我们设计了一类新的标准，以证明光子和声子数统计的非经典性。我们的标准扩展并加强了广泛使用的Klyshko标准，该标准仅需要了解一组有限的Fock州概率。这使得在现实条件下实现实验的标准非常适合。此外，我们在某些情况下证明了我们方法的完整性，这表明，当只知道两个或三个Fock州概率时，它检测到与经典状态不符的所有有限分布。特别是，我们表明，即使Klyshko却没有，我们的标准将一类嘈杂的液体状态视为非经典状态。该方法直接适用于与光子数分辨率探测器的光学和光学机械实验的捕获离子，超导电路。这项工作代表了从有限的Fock-State概率了解可访问的非经典性的一个重要里程碑。
We devise a new class of criteria to certify the nonclassicality of photon- and phonon-number statistics. Our criteria extend and strengthen the broadly used Klyshko's criteria, which require knowledge of only a finite set of Fock-state probabilities. This makes the criteria well-suited to experimental implementation in realistic conditions. Moreover, we prove the completeness of our method in some scenarios, showing that, when only two or three Fock-state probabilities are known, it detects all finite distributions incompatible with classical states. In particular, we show that our criteria detect a broad class of noisy Fock states as nonclassical, even when Klyshko's do not. The method is directly applicable to trapped-ion, superconducting circuits, and optical and optomechanical experiments with photon-number resolving detectors. This work represents a significant milestone towards a complete characterisation of the nonclassicality accessible from limited knowledge of the Fock-state probabilities.
