论文标题
通过原子多摩radiemementry在子HZ边界进行超轻暗物质搜索
Ultralight dark matter searches at the sub-Hz frontier with atom multigradiometry
论文作者
论文摘要
单光原子渐变级是一种强大的实验技术，可用于寻找由超轻标量暗物质（ULDM）诱导的原子过渡能的振荡。在子-Hz制度中，背景预计将由重力梯度噪声（GGN）主导，这是由于实验周围的质量波动而产生的。在这项工作中，我们将GGN建模为表面雷利波，并构建了基于似然的分析，该分析一致地将GGN折叠成1 MHz和1 Hz之间频率窗口中垂直原子梯度仪的灵敏度估计值。我们表明，在某些地质设置中，当操作多层计仪配置时，GGN可以显着缓解，该配置由同一基线中的三个或更多原子干涉仪组成。多式测量仪实验，例如AION和MAGIS-100的未来版本，有可能探测Sub-Hz制度中标量ULDM参数空间的区域，而现有实验尚未排除。
Single-photon atom gradiometry is a powerful experimental technique that can be employed to search for the oscillation of atomic transition energies induced by ultralight scalar dark matter (ULDM). In the sub-Hz regime the background is expected to be dominated by gravity gradient noise (GGN), which arises as a result of mass fluctuations around the experiment. In this work we model the GGN as surface Rayleigh waves, and we construct a likelihood-based analysis that consistently folds GGN into the sensitivity estimates of vertical atom gradiometers in the frequency window between 1 mHz and 1 Hz. We show that in certain geological settings GGN can be significantly mitigated when operating a multigradiometer configuration, which consists of three or more atom interferometers in the same baseline. Multigradiometer experiments, such as future versions of AION and MAGIS-100, have the potential to probe regions of scalar ULDM parameter space in the sub-Hz regime that have not been excluded by existing experiments.
