# Systematics of constant roll inflation

@article{Anguelova2017SystematicsOC, title={Systematics of constant roll inflation}, author={Lilia Anguelova and P{\'e}ter Sur{\'a}nyi and L. C. Rohana Wijewardhana}, journal={Journal of Cosmology and Astroparticle Physics}, year={2017}, volume={2018}, pages={004 - 004} }

We study constant roll inflation systematically. This is a regime, in which the slow roll approximation can be violated. It has long been thought that this approximation is necessary for agreement with observations. However, recently it was understood that there can be inflationary models with a constant, and not necessarily small, rate of roll that are both stable and compatible with the observational constraint ns ≈ 1. We investigate systematically the condition for such a constant-roll…

## 51 Citations

### On Non-slow Roll Inflationary Regimes

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Slow roll solutions to inflationary potentials have been widely believed to be the only universal attractor. Over the last few years there has been growing interest in a new class of inflationary…

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- PhysicsClassical and Quantum Gravity
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For the constant-roll tachyon inflation, we derive the analytical expressions for the scalar and tensor power spectra, the scalar and tensor spectral tilts and the tensor to scalar ratio to the first…

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