用于标量场暗物质的太阳系探测器
Solar System Probes for Scalar Field Dark Matter
AI总结：
研究针对标量场暗物质开发三种探测器，包括标量团块与柯伊伯带天体相遇的耀斑、原子钟搜索及天体测量微透镜，推导了相关灵敏度和零检测界限，展示了类似盖亚天体测量等的探测能力及未来实验的扩展潜力。
AI中文摘要：
标量场暗物质为传统粒子暗物质提供了一个有充分动机的替代方案，特别是当超轻场形成相干振荡或紧凑的自引力团块时。在此，我们开发了三种互补的太阳系和局部星系级别的此类模型探测器。这些探测器涉及标量团块与柯伊伯带天体相遇时类似ADAF的耀斑、原子钟搜索基本常数的振荡变化以及紧凑标量团块的天体测量微透镜。我们推导了对标量团块分数、时钟耦合和紧凑透镜丰度的简单灵敏度估计和零检测界限。我们的结果表明，类似盖亚的天体测量可以在$M_s\gtrsim10^{-2}M_\odot$附近以百分比水平探测紧凑标量团块，而未来的天体测量和时钟实验可以将探测范围扩展到更低质量和更弱耦合。
英文摘要：
Scalar field dark matter provides us with a well motivated alternative to conventional particle dark matter, especially when ultralight fields form coherent oscillations or compact self gravitating clumps. Here we develop three complementary Solar System and local Galactic level probes of such models. These probes pertain to ADAF-like flares from scalar clump encounters with Kuiper Belt Objects, atomic clock searches for oscillatory variations of fundamental constants and astrometric microlensing by compact scalar clumps. We derive simple sensitivity estimates and null detection bounds on the scalar clump fraction, clock couplings and compact lens abundance. Our results show that Gaia-like astrometry can probe compact scalar clumps at the percent level near $M_s\gtrsim10^{-2}M_\odot$, while future astrometric and clock experiments can extend the reach to lower masses and weaker couplings.
