期刊
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
卷 24, 期 1, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218271815300037
关键词
Inflation; reheating; nonperturbative dynamics; preheating; parametric resonance; thermalization; inflaton decay
资金
- Center for Theoretical Physics at MIT
- Kavli Institute for Cosmology at Cambridge (KICC)
- U.S. Department of Energy [DE-SC00012567]
- NSERC
- Senior Kavli Fellowship at KICC
Our understanding of the state of the universe between the end of inflation and big bang nucleosynthesis (BBN) is incomplete. The dynamics at the end of inflation are rich and a potential source of observational signatures. Reheating, the energy transfer between the inflaton and Standard Model fields (possibly through intermediaries) and their subsequent thermalization, can provide clues to how inflation fits in with known high-energy physics. We provide an overview of our current understanding of the nonperturbative, nonlinear dynamics at the end of inflation, some salient features of realistic particle physics models of reheating, and how the universe reaches a thermal state before BBN. In addition, we review the analytical and numerical tools available in the literature to study preheating and reheating and discuss potential observational signatures from this fascinating era.
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