How Do Quantum Fluctuations Shape Cosmic Structures?

[Leandro Bolonini]

TL;DR

How do quantum fluctuations affect the formation and evolution of structures in the universe on large scales?

How do quantum fluctuations affect the formation and evolution of structures in the universe on large scales?

 

[PeroK]

That's quite a broad question. Have you done any research on this yourself?

 

[Morbert]

@Leandro Bolonini An example paper exploring possible relations between primordial fluctuations and large-scale structures:

https://arxiv.org/abs/2207.06317

primordial quantum diffusion unavoidably generates non-Gaussian, exponential tails in the distribution of inflationary perturbations. These exponential tails have direct consequences for the formation of collapsed structures in the universe, as has been studied in the context of primordial black holes. We show that these tails also affect the very-largescale structures, making heavy clusters like “El Gordo”, or large voids like the one associated with the cosmic microwave background cold spot, more probable