On the generality of a cosmological speculation based on Heisenberg's principle

TL;DR

This paper extends a previous hypothesis suggesting that quantum fluctuations in the early universe could explain large-scale structure inhomogeneity, demonstrating its applicability across various cosmological models with different curvature and cosmological constant values.

Contribution

It generalizes earlier work by showing the quantum fluctuation hypothesis applies to universes with arbitrary curvature and cosmological constant.

Findings

Quantum fluctuations can explain large-scale structure inhomogeneity.

The hypothesis is valid for universes with any curvature.

It supports a quantum origin of cosmic structure.

Abstract

In a previous work [1], it was speculated that the lack of homogeneity of the large-scale structure of the universe may be due to quantum fluctuations of space in the early universe. In [1], this was argued for a Friedmann-type universe for which both the curvature and the cosmological constant were zero. Here it is shown that the same considerations are valid for arbitrary values of the curvature and the cosmological constant.