Interacting models may be key to solve the cosmic coincidence problem

By S. Campo, R. Herrera, D. Pavón. 2008

171 citations recorded by the source corpus.

It is argued that cosmological models that feature a flow of energy from dark energy to dark matter may solve the coincidence problem of late acceleration (i.e., ''why the energy densities of both components are of the same order precisely today?). However, much refined and abundant observational data of the redshift evolution of the Hubble factor are needed to ascertain whether they can do the job.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f21aa1dff3ce8e8d3b7da69384d68200b981aaa2

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. S. Vagnozzi
2. E. di Valentino
3. O. Mena
4. A. Melchiorri
5. Supriya Pan
6. Rafael C. Nunes
7. Miguel Escudero

In Nuclear and High Energy Physics

1. S. Vagnozzi
2. E. di Valentino
3. O. Mena
4. A. Melchiorri
5. Supriya Pan
6. Rafael C. Nunes
7. Miguel Escudero

Citations in the corpus

• Nonminimal dark sector physics and cosmological tensions (2019, background): “3 From the theoretical perspective, interactions between DM and DE beyond the purely gravitational ones are not forbidden by any fundamental symmetry in nature [136– 141] and could help addressing the so called coincidence or why now? problem [142–146] , see e.”
• Interacting dark energy in the early 2020s: A promising solution to the H0 and cosmic shear tensions (2019, unknown): “proportional to the DM four-velocity, studied in earlier works such as [144, 147, 154, 260].”