物理
光探测
光子
探测器
干涉测量
散粒噪声
噪音(视频)
光学
极限(数学)
参数统计
信号(编程语言)
计算物理学
光电探测器
计算机科学
图像(数学)
统计
数学分析
人工智能
数学
程序设计语言
标识
DOI:10.1103/physrevlett.56.2176
摘要
Near-photon-number-eigenstate fields lead to dramatic signal-to-noise improvement beyond the standard shot-noise limit in many optical systems, including interferometric gravitational-wave detectors. These fields may be generated from parametric processes with measurement feedback. Degradation from nonideal photodetection can be overcome by appropriate optical preamplification. It is estimated that an order-of-magnitude improvement can already be obtained with existing devices.
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