TY - JOUR
T1 - G-inflation
T2 - from the intermediate, logamediate and exponential models
AU - Herrera, Ramón
AU - Videla, Nelson
AU - Olivares, Marco
N1 - Funding Information:
Acknowledgements R.H. was supported by Proyecto VRIEA-PUCV N0 039.309/2018. N.V. acknowledges support from the Fondecyt de Iniciación project no. 11170162.
Publisher Copyright:
© 2018, The Author(s).
PY - 2018/11/1
Y1 - 2018/11/1
N2 - The intermediate, logamediate and exponential inflationary models in the context of Galileon inflation or G-inflation are studied. By assuming a coupling of the form G(ϕ,X)∝ϕνXn in the action, we obtain different analytical solutions from the background cosmological perturbations assuming the slow-roll approximation. General conditions required for these models of G-inflation to be realizable are determined and discussed. In general, we analyze the condition of inflation and also we use recent astronomical and cosmological observations for constraining the parameters appearing in these G-inflationary models.
AB - The intermediate, logamediate and exponential inflationary models in the context of Galileon inflation or G-inflation are studied. By assuming a coupling of the form G(ϕ,X)∝ϕνXn in the action, we obtain different analytical solutions from the background cosmological perturbations assuming the slow-roll approximation. General conditions required for these models of G-inflation to be realizable are determined and discussed. In general, we analyze the condition of inflation and also we use recent astronomical and cosmological observations for constraining the parameters appearing in these G-inflationary models.
UR - http://www.scopus.com/inward/record.url?scp=85057981388&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-018-6420-x
DO - 10.1140/epjc/s10052-018-6420-x
M3 - Article
AN - SCOPUS:85057981388
VL - 78
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 11
M1 - 934
ER -