Baryon asymmetry resulting from a quantum phase transition in the early universe

Details Baryon asymmetry resulting from a quantum phase transition in the early universe Baryon asymmetry resulting from a quantum phase transition in the early universe

2010-07-25

arxiv.org/abs/1007.4317v2

Europhys. Lett. 94, 69001 (2011)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 3 figures

Scientific paper

10.1209/0295-5075/94/69001

A novel mechanism for explaining the matter-antimatter asymmetry of the universe is considered. We assume that the universe starts from completely symmetric state and then, as it cools down, it undergoes a quantum-phase transition which in turn causes an asymmetry between matter and anti-matter. The mechanism does not require the baryon number violating interactions or CP violation at a microscopic level. Our analysis of the matter-antimatter asymmetry is in the context of conspicuous experimental results obtained in the condensed-matter physics.

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