Abstract
The aim of this paper is to explore warm inflation in the background of f(G) theory of gravity using scalar fields for the FRW universe model. We construct the field equations under slow-roll approximations and evaluate the slow-roll parameters, scalar and tensor power spectra and their corresponding spectral indices using viable power-law model. These parameters are evaluated for a constant as well as variable dissipation factor during intermediate and logamediate inflationary epochs. We also find the number of e-folds and tensor- scalar ratio for each case. The graphical behavior of these parameters proves that the isotropic model in f(G) gravity is compatible with observational Planck data.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. Perlmutter et al., Astrophys. J. 483, 565 (1997)
A. G. Riess et al., Astron. J. 116, 1009 (1998)
M. Tegmark et al., Phys. Rev. D 69, 103501 (2004).
C. Brans and R. H. Dicke, Phys. Rev. 124, 925 (1961)
H. Maeda, Class. Quantum Grav. 23, 2155 (2006)
S. Nojiri and S. D. Odintsov, Int. J. Geom. Methods Mod. Phys. 04, 115 (2007).
S. Nojiri and S. D. Odintsov, Phys. Lett. B 631, 1 (2005).
G. Cognola, E. Elizalde, S. Nojiri, S. D. Odintsov, and S. Zerbini, Phys. Rev. D 73, 084007 (2006).
A. de Felice and S. Tsujikawa, Phys. Rev. D 80, 063516 (2009).
A. H. Guth, Phys. Rev. D 23, 347 (1981)
A. Albrecht and P. J. Steinhardt, Phys. Rev. Lett. 48, 1220 (1982).
S. W. Hawking, Phys. Lett. B 115, 295 (1982)
J. M. Bardeen, P. J. Steinhardt, and M. S. Turner, Phys. Rev. D 28, 679 (1983).
L. Kofman, A. Linde, and A. A. Starobinsky, Phys. Rev. Lett. 73, 3195 (1994)
S. Y. Khlebnikov and I. I. Tkachev, Phys. Rev. Lett. 77, 219 (1996)
B. A. Bassett, S. Tsujikawa, and D. Wands, Rev. Mod. Phys. 78, 537 (2006).
A. Berera, Phys. Rev. Lett. 75, 3218 (1995)
A. Berera, Phys. Rev. D 55, 3346 (1997).
A. Berera, Nucl. Phys. B 585, 666 (2000)
L. M. H. Hall, I. G. Moss, and A. Berera, Phys. Rev. D 69, 083525 (2004).
J. D. Barrow and P. Saich, Phys. Lett. B 249, 406 (1990)
J. D. Barrow, Phys. Lett. B 235, 40 (1990).
J. D. Barrow, Class. Quantum Grav. 13, 2965 (1996)
J. D. Barrow and N. J. Nunes, Phys. Rev. D 76, 043501 (2007).
R. Herrera, M. Olivares, and N. Videla, Phys. Rev. D 88, 063535 (2013).
M. R. Setare and V. Kamali, Phys. Lett. B 726, 56 (2013).
M. Sharif and R. Saleem, Eur. Phys. J. C 74, 2738 (2014).
A. Banijamali and B. Fazlpour, Eur. Phys. J. C 71, 1684 (2011).
K. Bamba, S. Nojiri, S. D. Odintsov, and D. Saez-Gomez, Phys. Rev. D 90, 124061 (2014).
K. Bamba and S. D. Odintsov, Symmetry 7, 220 (2015).
M. de Laurentis, M. Paolella, and S. Capozziello, Phys. Rev. D 91, 083531 (2015).
S. Myrzakul, R. Myrzakulov, and L. Sebastiani, Eur. Phys. J. C 75, 111 (2015).
Y. Zhang, J. Cosmol. Astropart. Phys. 03, 023 (2009)
M. Bastero-Gil, A. Berera, and R. O. Ramos, J. Cosmol. Astropart. Phys. 07, 030 (2011).
I. G. Moss and C. Xiong, arXiv:hep-ph/0603266
A. Berera, I. G. Moss, and R. O. Ramos, Rep. Progr. Phys. 72, 026901 (2009)
M. Bastero-Gil, A. Berera, and R. O. Ramos, J. Cosmol. Astropart. Phys. 09, 033 (2011)
R. Herrera, N. Videla, and M. Olivares, Phys. Rev. D 90, 103502 (2014).
A. A. Starobinsky, Phys. Lett. B 117, 175 (1982)
V. A. Rubakov, M. V. Sazhin, and A. V. Veryaskin, Phys. Lett. B 115, 189 (1982).
P. A. R. Ade et al., Astron. Astrophys. 571, A16 (2014).
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Sharif, M., Ikram, A. Warm inflation in f(G) theory of gravity. J. Exp. Theor. Phys. 123, 40–50 (2016). https://doi.org/10.1134/S1063776116070232
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776116070232