论文标题
后选择的von Neumann测量对单光子添加连贯状态的非经典性的影响
Effects of postselected von Neumann measurement on nonclassicality of single-photon-added coherent state
论文作者
论文摘要
研究了冯·诺伊曼（Von Neumann）在选择测量对单光子增添相干状态（SPAC）非经典性的影响。研究了von Neumann测量后的von Neumann测量后，诸如光子数分布，曼德尔Q_ {M}因子以及场正交的挤压参数之类的各种场属性的显式表达式和分析结果。结果表明，测量后的SPAC的非经典性比初始状态发生了巨大变化。该测量让SPAC在某些确定的耦合强度状态和较大的弱值中具有更强的次峰次副子光子统计数据，伴随着较低的选择后概率。
The effects of von Neumann postselected measurement on nonclassicality of single-photon-added coherent state (SPACS) are studied. Explicit expressions and analytical results for various field properties of SPACS such as the photon number distribution, the Mandel Q_{m} factor and the squeezing parameter of field quadrature after postselected von Neumann measurement are investigated. The results showed that the nonclassicality of SPACS after measurement changed dramatically than initial state. The measurement let SPACS possess more strong sub-Poissonian photon statistics in some definite coupling strength regimes and large weak values which accompanied by low postselection probabilities.
