Dynamics of the Inflationary Flow Equations

Sirichai Chongchitnan; George Efstathiou

doi:10.1103/physrevd.72.083520

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Dynamics of the Inflationary Flow Equations

Sirichai Chongchitnan·George Efstathiou

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Abstract

We present a dynamical analysis of the inflationary flow equations. Our technique uses the Hubble `jerk' parameter as a discriminant of stability of fixed points. The results of the analysis are used to explain qualitatively the distribution of various observable parameters (e.g. the tensor-scalar ratio, r, and scalar spectral index, n_s) seen in numerical solutions of the flow equations using stochastic initial conditions. Finally, we give a physical interpretation of the flow in phase-space in terms of slow-roll motion of the inflaton.

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Sirichai Chongchitnan, George Efstathiou. 2008-10-30. Dynamics of the Inflationary Flow Equations. https://doi.org/10.1103/physrevd.72.083520

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