Curvature bounce in general relativity: background and primordial spectrum - INSPIRE

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Curvature bounce in general relativity: background and primordial spectrum

Cyril Renevey
(
- LPSC, Grenoble and
- Zurich, ETH
)
,
Aurélien Barrau
(
- LPSC, Grenoble
)
,
Killian Martineau
(
- LPSC, Grenoble
)
,
Selim Touati
(
- LPSC, Grenoble
)

Oct 26, 2020

8 pages

Published in:

JCAP 01 (2021) 018

Published: Jan 13, 2021

e-Print:

2010.13542 [gr-qc]

DOI:

10.1088/1475-7516/2021/01/018

View in:

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Abstract: (IOP)

Recent data suggest that the Universe could be positively curved. Combined with an inflationary stage, this might lead to a curvature bounce instead of the Big Bang. The background evolution is presented, as a function of the parameters controlling the cosmic evolution. The primordial tensor spectrum is also calculated and possible observational footprints of the model are underlined. Several potentials are considered and general remarks are made about “naturalness” in this context.

Note:

8 pages, 8 figures

spectrum: tensor
background
curvature
bounce
general relativity
naturalness
inflation
big bang
cosmological model

References(43)

Figures(8)

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