| Issue |
EPL
Volume 123, Number 4, August 2018
|
|
|---|---|---|
| Article Number | 49002 | |
| Number of page(s) | 5 | |
| Section | Geophysics, Astronomy and Astrophysics | |
| DOI | https://doi.org/10.1209/0295-5075/123/49002 | |
| Published online | 21 September 2018 | |
Constraints on the radiation temperature before inflation
1 Instituto de Física. Pontificia Universidad Católica de Valparíso - casilla 4056, Valparaíso, Chile
2 Departmento de Física, Universidad Autónoma de Barcelona-08193 Bellaterra (Barcelona), Spain
(a) ramon.herrera@pucv.cl
(b) diego.pavon@uab.es
(c) joel.saavedra@pucv.cl
Received: 18 June 2018
Accepted: 21 August 2018
We consider the short period of cosmic expansion ranging from the end of the Planck era to the beginning of inflation and set upper and lower limits on the temperature of the radiation at the commencement of the inflationary phase.
PACS: 98.80.Bp – Origin and formation of the Universe / 98.80.Jk – Mathematical and relativistic aspects of cosmology / 04.20.-q – Classical general relativity
© EPLA, 2018
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