论文标题
搜索带有引力波干涉仪的Spin-2 ULDM
Searching for spin-2 ULDM with gravitational waves interferometers
论文作者
论文摘要
在重力波干涉仪天文学的时代，从合并二进制物中发现引力波的检测已引入。除了这些强，短暂的，灾难性的事件外，如果振荡几乎是单色和“连续”，即很长时间以来连贯的，则可以检测到弱信号。在这项工作中，我们表明，由于其通用耦合$α$与标准模型场的通用耦合，自旋两的深色物质产生的信号类似于连续引力波。我们表明，可以用电流和计划的重力波干涉仪检测该信号。如果发生零检测，当前功能可能会将耦合限制为低于$α\ sim10^{ - 7} $，对于数十个Hz的频率，对应于$ 10^{ - 13} $ ev标记的暗物质质量。未来的设施可能会进一步降低这些上限，并将其扩展到较小的群体至$ 10^{ - 18} $ ev。这些极限将是Spin-2 Yukawa第五力强度的最严格的边界，该强度由$α$参数，在引力波干涉仪中可访问的频率范围内。因此，对引力波干涉仪的这种类型的搜索实施将进一步掌握我们对暗物质和重力的掌握。
The detection of gravitational waves from merging binaries has ushered in the era of gravitational wave interferometer astronomy. Besides these strong, transient, calamitous events, much weaker signals can be detected if the oscillations are nearly monochromatic and "continuous", that is, coherent over a long time. In this work we show that ultra-light dark matter of spin two, owing to its universal coupling $α$ to Standard Model fields, generates a signal that is akin to but distinct from a continuous gravitational wave. We show that this signal could be detected with current and planned gravitational wave interferometers. In the event of a null detection, current facilities could constrain the coupling to be below $α\sim10^{-7}$ for frequencies of tens of Hz, corresponding to dark matter masses around the $10^{-13}$ eV mark. Future facilities could further lower these upper limits and extend them to smaller masses down to $10^{-18}$ eV. These limits would be the most stringent bounds on the spin-2 Yukawa fifth force strength, parametrised by $α$, in the frequency ranges accessible by gravitational wave interferometers. The implementation of this type of searches for gravitational wave interferometers would therefore further our grasp of both dark matter and gravity.
