论文标题
在射频范围内超轻标量暗物质上的界限改善
Improved bounds on ultralight scalar dark matter in the radio-frequency range
论文作者
论文摘要
我们提出了搜索基本恒定振荡范围内的基本恒定振荡，$ 20 $ 〜khz- $ 100 $ MHz可能会在超轻暗物质（UDM）的型号中产生。使用两个独立的，显着升级的光谱设备，我们相对于先前的工作，搜索中最多可提高$ 1000的灵敏度。我们没有报告对UDM的观察，因此将相应的耦合限制为所研究的UDM粒子质量范围内的电子和光子$ 8 \ CDOT 10^{ - 11} -4 \ CDOT 10^{ - 7} $ eV。这些约束大大超过了先前设定的界限，正如我们所显示的，在未来的实验中，在对等效性基本实验提供的未来实验中，在特定情况下，有关后者探测的UDM耦合的组合。
We present a search for fundamental constant oscillations in the range $20$~kHz-$100$ MHz, that may arise within models for ultralight dark matter (UDM). Using two independent, significantly upgraded optical-spectroscopy apparatus, we achieve up to $\times$1000 greater sensitivity in the search relative to previous work. We report no observation of UDM and thus constrain respective couplings to electrons and photons within the investigated UDM particle mass range $8\cdot 10^{-11}-4\cdot 10^{-7}$ eV. The constraints significantly exceed previously set bounds, and as we show, may surpass in future experiments those provided by equivalence-principle experiments in a specific case regarding the combination of UDM couplings probed by the latter.
