A second Big Bang in cosmic history
We provide a summary and discussion of the paper titled "Dark Matter and Gravity Waves from a Dark Big Bang" from arXiv.
Paper Summary
This paper explores a unique cosmological scenario in which dark matter is created through a second Big Bang, referred to as the "Dark Big Bang." This event occurs after the hot Big Bang and is caused by a phase transition in the dark sector, transforming dark vacuum energy into a hot dark plasma.
Key points
Second Big Bang: This Dark Big Bang occurred later, marking a second Big Bang in cosmic history, which transformed dark vacuum energy into a hot, invisible plasma.
Dark Matter Creation: The process explains how dark matter, which makes up most of the Universe's mass but is invisible to us, could have formed.
Unique Evidence: Although dark matter itself is hard to detect, this event could leave behind gravitational waves that we might observe with advanced experiments.
Proven Consistency: The authors have demonstrated that the dark matter produced in this scenario possesses the correct properties to form galaxies and other structures, aligning well with our current understanding of the Universe.
We covered this in a bit more detail here.
Read the full paper
For those interested in digging deeper into the research, you can view the original paper directly on arXiv through the following link: View on arXiv [2302.11579] Dark Matter and Gravity Waves from a Dark Big Bang (arxiv.org)