Abstract

The principal limitations imposed by spin (or atomic) quantum projection noise on the sensitivity of optical quantum sensors on thermal atoms, which include frequency standards, magnetometers, and gyroscopes that use optical detection of electron paramagnetic resonance, have been theoretically and experimentally studied. The effect of increasing the rms amplitude of the projection noise in a magnetometric scheme under the influence of a strong optical pumping has been demonstrated. Its explanation has been proposed and experimentally confirmed: it has been shown that this effect is explained by the invariance of the integral power of projection noise in relation to the magnetic resonance linewidth in a wide range of pumping intensities An experimental study of the parameters of projection noise in a magnetometric quantum sensor has been conducted and recommendations for optimizing the sensor parameters have been given.

中文翻译：

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基于热原子的光学量子传感器中的投影自旋噪声

摘要

从理论上和实验上研究了自旋（或原子）量子投影噪声对光学量子传感器对热原子的敏感性的主要限制，其中包括频率标准，磁力计和使用光学检测电子顺磁共振的陀螺仪。已经证明了在强光泵浦的影响下，在磁力计方案中增加投影噪声的均方根值的效果。已经提出并通过实验证实了其解释：