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arXiv · 1310.4988

Single-field inflation à la generalized Chaplygin gas

Sergio del Campo
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Abstract

In the simplest scenario for inflation, i. e. in the single-field inflation, it is presented an inflaton field with properties equivalent to a generalized Chaplygin gas. Their study is performed using the Hamilton-Jacobi approach to cosmology. The main results are contrasted with the measurements recently released by the Planck data, combined with the WMAP large-angle polarization. If the measurements released by Planck for the scalar spectral index together with its running are taken into account it is found a value for the $α$-parameter associated to the generalized Chaplygin gas given by $α= 0.2578 \pm 0.0009$.

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Sergio del Campo. 2013-10-18. Single-field inflation à la generalized Chaplygin gas. https://doi.org/10.1088/1475-7516%2F2013%2F11%2F004

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