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We dedicate this chapter to inflation, a model of the primordial universe in which an almost constant H provides a scale factor a growing exponentially with the cosmic time. Inflation is able to solve some puzzles related to background cosmology and also to provide a testable prediction of the power spectrum of primordial fluctuations. Among the first pioneering works on inflation there are Starobinsky (JETP Lett 30:682–685, 1979), Guth (Phys Rev D 23:347–356, 1981), Linde (Phys Lett 108B:389–393, 1982) and Albrecht and Steinhardt (Phys Rev Lett 48:1220–1223, 1982).
KeywordsSlow-roll Parameters Radiation-dominated Epoch Scalar Spectral Index Horizon Cross Inflaton Field
- Ade, P.A.R., et al.: Planck 2015 results. XX. constraints on inflation. Astron. Astrophys. 594, A20 (2016a)Google Scholar
- Linde, A.: On the problem of initial conditions for inflation. In: Black Holes, Gravitational Waves and Spacetime Singularities Rome, Italy, 9–12 May 2017Google Scholar
- Mukhanov, V.F.: Gravitational instability of the Universe filled with a scalar field. JETP Lett. 41, 493–496 (1985). Pisma Zh. Eksp. Teor. Fiz.41,402(1985)Google Scholar
- Starobinsky, A.A.: Spectrum of relict gravitational radiation and the early state of the universe. JETP Lett. 30, 682–685 (1979). Pisma Zh. Eksp. Teor. Fiz.30,719(1979)Google Scholar
- Tsujikawa, S.: Distinguishing between inflationary models from cosmic microwave background. PTEP 2014(6), 06B104 (2014)Google Scholar