论文标题
使用空腔谐振器和电容器搜索标量线暗物质
Searching for Scalar Field Dark Matter using Cavity Resonators and Capacitors
论文作者
论文摘要
我们建立了新的实验，以基于轻标量场的模型来搜索暗物质，该模型与电磁场的dilaton样耦合相结合，该耦合是由Superstring Theory的强烈动机。我们在非谐振标量透射和电磁场渗透的空腔谐振器中估计光子信号的功率。我们表明，像ADMX这样的实验中采用的现有空腔谐振器对标量 - 光子耦合的敏感性较低但不变。结果，通过重新定位ADMX实验的结果，我们发现标量 - 光子耦合的新限制在标量场质量范围内从2.7至4.2 $μ$ EV。我们讨论了该实验的可能修改，从而增强了对标量场暗物质的敏感性。我们还提出了一个基于高压电容器的标量场暗物质搜索的宽带实验。该实验的估计灵敏度在幅度上超过了近两个阶，基于分子光谱的实验灵敏度。
We establish new experiments to search for dark matter based on a model of a light scalar field with a dilaton-like coupling to the electromagnetic field, which is strongly motivated by superstring theory. We estimate the power of the photon signal in the process of a non-resonant scalar-photon transition and in a cavity resonator permeated by electric and magnetic fields. We show that existing cavity resonators employed in the experiments like ADMX have a low but non-vanishing sensitivity to the scalar-photon coupling. As a result, by re-purposing the results of the ADMX experiment, we find new limits on the scalar-photon coupling in the range of the scalar field masses from 2.7 to 4.2 $μ$eV. We discuss possible modifications of this experiment, which enhance the sensitivity to the scalar field dark matter. We also propose a broadband experiment for scalar field dark matter searches based on a high-voltage capacitor. The estimated sensitivity of this experiment exceeds by nearly two orders in magnitude the sensitivity of the experiment based on molecular spectroscopy.
