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Viability of the matter bounce scenario in Loop Quantum Cosmology from BICEP2 last data

Autor
Haro, J.; Amoros, J.
Tipus d'activitat
Article en revista
Revista
Journal of cosmology and astroparticle physics
Data de publicació
2014-08-01
Volum
2014
Número
08
DOI
https://doi.org/10.1088/1475-7516/2014/08/025 Obrir en finestra nova
Projecte finançador
Ecuaciones en derivadas parciales: problemas de reacción-difusión y problemas geométricos
Ecuacions en derivades parcials i aplicacions
Geomatría algebraica, simpléctica, aritmética y aplicaciones.
Repositori
http://arxiv.org/abs/1403.6396 Obrir en finestra nova
http://hdl.handle.net/2117/77748 Obrir en finestra nova
URL
http://iopscience.iop.org/1475-7516/2014/08/025/ Obrir en finestra nova
Resum
The CMB map provided by the Planck project constrains the value of the ratio of tensor-to-scalar perturbations, namely r, to be smaller than 0.11 (95 % CL). This bound rules out the simplest models of inflation. However, recent data from BICEP2 is in strong tension with this constrain, as it finds a value r=0.20+0.07 -0.05 with 0r= disfavored at 7.0 s, which allows these simplest inflationary models to survive. The remarkable fact is that, even though the BICEP2 experiment was conceived to searc...
Citació
Haro, J., Amoros, J. Viability of the matter bounce scenario in Loop Quantum Cosmology from BICEP2 last data. "Journal of cosmology and astroparticle physics", 12 Agost 2014, p. 1-12.
Paraules clau
alternatives to inflation, cosmological perturbation theory
Grup de recerca
EDP - Equacions en Derivades Parcials i Aplicacions
GEOMVAP - Geometria de Varietats i Aplicacions

Participants

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