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- Title
Creation and Evolution of Particle Number Asymmetry in an Expanding Universe.
- Authors
Morozumi, T.; Nagao, K.; Adam, A.; Takata, H.
- Abstract
We introduce a model which may generate particle number asymmetry in an expanding Universe. The model includes charge parity (CP) violating and particle number violating interactions. The model consists of a real scalar field and a complex scalar field. Starting with an initial condition specified by a density matrix, we show how the asymmetry is created through the interaction and how it evolves at later time. We compute the asymmetry using non-equilibrium quantum field theory and as a first test of the model, we study how the asymmetry evolves in the flat limit.
- Subjects
PARTICLES (Nuclear physics); ASYMMETRY (Chemistry); CPT theorem; SCALAR field theory; QUANTUM field theory
- Publication
Russian Physics Journal, 2017, Vol 59, Issue 11, p1852
- ISSN
1064-8887
- Publication type
Article
- DOI
10.1007/s11182-017-0986-x