Imperial College London

Carlo R. Contaldi

Faculty of Natural SciencesDepartment of Physics

Professor of Theoretical Physics
 
 
 
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Contact

 

+44 (0)20 7594 1527c.contaldi

 
 
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Location

 

505Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Horner:2015,
author = {Horner, JS and Contaldi, CR},
title = {The bispectrum of single-field inflationary trajectories with $c_(s) \neq 1$},
url = {http://arxiv.org/abs/1503.08103v1},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The bispectrum of single-field inflationary trajectories in which the speedof sound of the inflationary trajectories $c_s$ is constant but not equal tothe speed of light $c=1$ is explored. The trajectories are generated as randomrealisations of the Hubble Slow-Roll (HSR) hierarchy and the bispectra arecalculated using numerical techniques that extends previous work. This methodallows for out-of-slow-roll models with non-trivial time dependence andarbitrarily low $c_s$. The ensembles obtained using this method yielddistributions for the shape and scale-dependence of the bispectrum and theirrelations with the standard inflationary parameters such as scalar spectraltilt $n_s$ and tensor-to-scalar ratio $r$. The distributions demonstrate thesqueezed-limit consistency relations for arbitrary single-field inflationarymodels.
AU - Horner,JS
AU - Contaldi,CR
PY - 2015///
TI - The bispectrum of single-field inflationary trajectories with $c_{s} \neq 1$
UR - http://arxiv.org/abs/1503.08103v1
ER -