This Essay explores consequences of a dark nonlinear electromagnetic sector in a universe with a net dark charge for matter. The cosmological dynamics can be described by a Lemaître model and can be understood, thanks to a screening mechanism driven by the electromagnetic nonlinearities that suppress the dark force on small scales. Only at low redshift, when the screening scale enters the Hubble horizon, do cosmological structures commence to feel the dark repulsion. This repulsive force enhances the local value of the Hubble constant, thus providing a promising scenario for solving the Hubble tension. Remarkably, the dark electromagnetic interaction can have a crucial impact on peculiar velocities, i.e. introducing a bias in their reconstruction methods, and having the potential to explain the presence of a dark flow.

中文翻译：

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屏蔽H0张力

这篇论文探讨了在物质带有净暗电荷的宇宙中暗非线性电磁扇区的后果。宇宙动力学可以通过 Lemaître 模型来描述并且可以被理解，这要归功于由电磁非线性驱动的屏蔽机制，它在小尺度上抑制暗力。只有在低红移时，当屏蔽尺度进入哈勃视界时，宇宙结构才会开始感受到黑暗排斥。这种斥力提高了哈勃常数的局部值，从而为解决哈勃张力提供了一个有希望的方案。值得注意的是，暗电磁相互作用可以对奇特速度产生至关重要的影响，即在其重建方法中引入偏差，并有可能解释暗流的存在。