论文标题
有效的光子质量和（黑暗）的光子转换在不均匀的宇宙中
Effective photon mass and (dark) photon conversion in the inhomogeneous Universe
论文作者
论文摘要
穿过不均匀宇宙的宇宙学距离的光子经历了其中等诱导的有效质量的巨大变化。使用流体动力学模拟的鹰套件，我们推断出自由电子分布，从而在电源后进行有效的光子质量。我们使用这些数据来研究动力学混合光子和深色光子的转化，这些光子可能以大量的共振红移发生，并获得“光学深度”，以沿着随机的视线转换。使用Cobe/Firas，Planck和SPT测量值，我们将深色光子参数空间从CMB光子的耗尽到深色光子，从而导致光谱畸变和CMB中的其他各向异性。最后，我们还考虑了Sub-eV暗辐射到普通光子的转化。我们进行了公开可用的视线，免费电子和暗物质的视线分布。
Photons traveling cosmological distances through the inhomogeneous Universe experience a great variation in their in-medium induced effective mass. Using the EAGLE suite of hydrodynamical simulations, we infer the free electron distribution and thereby the effective photon mass after reionization. We use this data to study the inter-conversion of kinetically mixed photons and dark photons, which may occur at a great number of resonance redshifts, and obtain the "optical depth" against conversion along random lines-of-sight. Using COBE/FIRAS, Planck, and SPT measurements, we constrain the dark photon parameter space from the depletion of CMB photons into dark photons that causes both spectral distortions and additional anisotropies in the CMB. Finally, we also consider the conversion of sub-eV dark radiation into ordinary photons. We make the line-of-sight distributions of both, free electrons and dark matter, publicly available.
