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arXiv · 1612.00760

Non Bunch Davies group coherent states, and their quantum signatures in CMB observables

Pietro Dona·Antonino Marciano
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Abstract

We approach the problem of finding generalized states for matter fields in a de Sitter universe, moving from a group theoretical point of view. This has profound consequences for cosmological perturbations during inflation, and for other CMB observables. In a systematic derivation, we find all the allowed generalities that such a state may have, within the requirements of coherent states. Furthermore, we show their relation to the more familiar excited initial states, often used in inflation.

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Pietro Dona, Antonino Marciano. 2016-12-02. Non Bunch Davies group coherent states, and their quantum signatures in CMB observables. https://arxiv.org/abs/1612.00760

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