标题： 受引力不稳定性干扰：炽热且模糊的暗物质 显示英文标题

标题： Interference with Gravitational Instability: Hot and Fuzzy Dark Matter

摘要： 具有高动量的波状或模糊暗物质在许多方面表现得像热粒子暗物质，但由于波的干涉效应，似乎表现出不同的现象学特征。 我们发展了波扰动理论，表明由高动量波干涉产生的白噪声密度涨落，在物质主导时期的自由流尺度之上以通常的方式是引力不稳定的，并且在自由流尺度之下趋于稳定，这与热暗物质中大质量中微子的类似效应相似。 我们在牛顿-薛定谔-泊松模拟的密度功率谱中验证并展示了这些效应。 在宇宙学背景下，这会导致物质辐射平等时期自由流尺度以下初始白噪声等曲率扰动的逐渐抑制，不同于冷暗物质等曲率涨落，并且暗物质晕的引力稳定性。 显示英文摘要

摘要： Wave or fuzzy dark matter produced with high momenta behaves in many ways like hot particle dark matter while also possessing seemingly different phenomenology due to wave interference. We develop wave perturbation theory to show that white noise density fluctuations generated by the interference of high-momenta waves are gravitationally unstable in the usual way during matter domination above the free streaming scale and stabilize below the free streaming scale, much like the analogous effects for massive neutrinos in hot dark matter. We verify and illustrate these effects in the density power spectra of Newtonian Schr\"odinger-Poisson simulations. In the cosmological context, this would cause a gradual suppression of the initial white noise isocurvature perturbations below the free streaming scale at matter radiation equality, unlike cold dark matter isocurvature fluctuations, and virial stability of dark matter halos.