Tyagi Gargi, Panigrahi Prasanta K
Opt Lett. 2021 Mar 1;46(5):1177-1180. doi: 10.1364/OL.415713.
The phase space structure and statistics of the photon added cat state are studied in the state's general form. Photon addition leads to a phase shift at the origin in the observed phase space interference of the Wigner function, which may serve as an error syndrome detector. The maxima and minima of the sub-Planck tiles in the phase space of the kitten state are interchanged after photon addition, leading to their orthogonality. Interestingly, photon addition to the Yurke-Stoler state characterized by Poissonian statistics leads to a sub-Poissonian distribution, which may find potential use in quantum noise reduction.
研究了一般形式下添加光子的猫态的相空间结构和统计特性。光子添加导致维格纳函数在观测相空间干涉中的原点处出现相移，这可作为一种错误综合征探测器。添加光子后，小猫态相空间中亚普朗克瓦片的最大值和最小值发生互换，导致它们相互正交。有趣的是，对具有泊松统计特性的尤尔克 - 斯托勒态添加光子会导致亚泊松分布，这可能在量子噪声降低方面有潜在应用。
