在处于维里化的核心-晕结构中模糊暗物质与重子物质之间的时间相关性
Temporal Correlations Between Fuzzy Dark Matter and Baryonic Matter in Virialized Core-Halo Structures
AI总结：
研究模糊暗物质（FDM）与重子物质间时间相关性，用薛定谔-泊松-欧拉系统演化耦合构型，经相关函数等分析涨落，发现FDM涨落与气体动力学无强时间相关性，表明重子物质对晕整体引力势反应，限制FDM颗粒度探测。
AI中文摘要：
模糊暗物质（FDM）预测存在由超轻玻色子的波动性质产生的具有干涉驱动颗粒结构的维里化晕。由于这些涨落产生随时间变化的引力场，它们可被视为对重子物质产生可观测动力学效应的潜在来源。本文测试这种涨落是否会在FDM与耦合气体成分之间产生可测量的时间相关性。我们用薛定谔-泊松-欧拉系统在三维空间中演化耦合的FDM-气体构型。FDM成分通过向核心-晕结构弛豫的多重合并构型初始化，重子成分被建模为理想气体。在维里化之后，我们通过相关函数和频谱诊断分析两者的时间涨落。FDM密度场显示出具有显著高频成分的涨落，而气体形成更平滑、寿命更长的相干结构。尽管气体对FDM晕产生的引力势有动态响应，但我们发现FDM的干涉驱动涨落与气体动力学之间没有强时间相关性。这种行为在探索的气体温度范围内持续存在。我们的结果表明，重子物质对维里化晕的整体引力势做出反应，而不是对FDM的详细相位相关颗粒结构做出反应。这种弱时间耦合可能会限制通过局部重子时间涨落直接探测FDM颗粒度的可能性。
英文摘要：
Fuzzy Dark Matter (FDM) predicts the existence of virialized halos with interference-driven granular structure generated by the wave nature of ultralight bosons. Since these fluctuations produce time-dependent gravitational fields, they can be proposed as a potential source of observable dynamical effects on baryonic matter. In this work we test whether such fluctuations generate measurable temporal correlations between FDM and a coupled gas component. We evolve coupled FDM-gas configurations with the Schrödinger-Poisson-Euler system in three dimensions. The FDM component is initialized through multimerger configurations that relax toward core-halo structures, while the baryonic component is modeled as an ideal gas. After virialization, we analyze the temporal fluctuations of both components through correlation functions and spectral diagnostics. The FDM density field shows fluctuations with significant high-frequency content, whereas the gas develops smoother and longer-lived coherent structures. Although the gas dynamically responds to the gravitational potential generated by the FDM halo, we find no strong temporal correlation between the interference-driven fluctuations of FDM and the gas dynamics. This behavior persists across the explored range of gas temperatures. Our results indicate that baryonic matter reacts to the global gravitational potential of the virialized halo rather than to the detailed phase-dependent granular structure of FDM. This weak temporal coupling may limit the possibility of directly detecting FDM granularity through local baryonic temporal fluctuations.
