The quantum character of the Scalar Field Dark Matter

TL;DR

This paper explores the quantum effects of Scalar Field Dark Matter (SFDM) at cosmological scales, suggesting that quantum mechanics could explain large-scale cosmic phenomena and the structure of dark matter halos.

Contribution

It demonstrates that quantum effects of SFDM are significant at cosmological scales and that SFDM halos naturally resemble atomic structures.

Findings

Quantum effects influence SFDM halo shapes.

SFDM can explain galactic phenomena like satellite orbits and emissions.

Halo structures resemble atomic configurations.

Abstract

The Scalar Field Dark Matter (SFDM) model, also called Fuzzy, Wave, Bose-Einstein, Ultra-light Dark Matter, has received a lot of attention because it has been able to provide simpler and more natural explanations for various features of galaxies, such as the number of satellite galaxies and the cusp-core problem. We recently showed that this model is able to explain the vast polar orbits of satellite galaxies around their host, the so-called VPO, and to explain the X-ray and gamma-ray emissions in the vacuum regions of our galaxy, that is, the Fermi Bubbles. In all these phenomena the quantum character of SFDM has been crucial. In this work we study the quantum effects of SFDM at the cosmological level, to see these effects not only at the galactic scale, but also at the cosmological scale. Using a convenient ansatz, we were able to integrate the perturbed equations to show that the shape of the SFDM halos resembling atoms is a generic result. The main conclusion of this work is that quantum mechanics, the successful microworld theory, could also explain the dark side of the cosmos.