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- W2890465274 abstract "Certain features in the primordial scalar power spectrum are known to improve the fit to the cosmological data. We examine whether bouncing scenarios can remain viable if future data confirm the presence of such features. In inflation, the fact that the trajectory is an attractor permits the generation of features. However, bouncing scenarios often require fine-tuned initial conditions, and it is only the ekpyrotic models that allow attractors. We demonstrate, for the first time, that ekpyrotic scenarios can generate specific features that have been considered in the context of inflation." @default.
- W2890465274 created "2018-09-27" @default.
- W2890465274 creator A5021404279 @default.
- W2890465274 creator A5028927581 @default.
- W2890465274 date "2019-02-19" @default.
- W2890465274 modified "2023-09-25" @default.
- W2890465274 title "Primordial features from ekpyrotic bounces" @default.
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- W2890465274 doi "https://doi.org/10.1103/physrevd.99.043527" @default.
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