Abstract
Warm inflation model with bulk viscous pressure in the context of “intermediate inflation” where the cosmological scale factor expands as \(a(t)=a_0\exp (At^f)\), is studied. The characteristics of this model in slow-roll approximation and in high dissipative regime are presented in two cases: 1—Dissipative parameter \(\Gamma \) as a function of scalar field \(\phi \) and bulk viscous coefficient \(\zeta \) as a function of energy density \(\rho \). 2—\(\Gamma \) and \(\zeta \) are constant parameters. Scalar, tensor perturbations and spectral indices for this scenario are obtained. The cosmological parameters appearing in the present model are constrained by recent observational data (WMAP7).
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References
Guth, A.: The inflationary universe: A possible solution to the horizon and flatness problems. Phys. Rev. D 23, 347 (1981)
Albrecht, A., Steinhardt, P.J.: Cosmology for grand unified theories with radiatively induced symmetry breaking. Phys. Rev. Lett. 48, 1220 (1982)
Albrecht, A., Steinhardt, P.J.: A complete description of inflationary scenarios can be found in the book by A. Linde. In: Linder, C.C. (ed.) Particle Physics and Inflationary Cosmology. Gordon and Breach, New York (1990)
WMAP collaboration, Komatsu, E. et al.: Seven-year Wilkinson microwave anisotropy probe (WMAP) observations: cosmological interpretation. Astrophys. J. Suppl. 192, 18 (2011). arXiv:1001.4538
Gold, B., et al.: Seven-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: galactic foreground emission. Astrophys. J. Suppl. 192, 15 (2011). arXiv:1001.4555
Larson, D., et al.: Seven-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: power spectra and WMAP-derived parameters. Astrophys. J. Suppl. 192, 16 (2011). arXiv:1001.4635
Berera, A.: Warm inflation. Phys. Rev. Lett. 75, 3218 (1995). astro-ph/9509049
Berera, A.: Interpolating the stage of exponential expansion in the early universe: a possible alternative with no reheating. Phys. Rev. D 55, 3346 (1995). hep-ph/9612239]
Hall, L.M.H., Moss, I.G., Berera, A.: Phys. Rev. D 69, 083525 (2004)
Moss, I.G.: Phys. Lett. B 154, 120 (1985)
Berera, A.: Nucl. Phys. B 585, 666 (2000)
Mimoso, J.P., Nunes, A., Pavon, D.: Phys. Rev. D 73, 023502 (2006)
del Campo, S., Herrera, R., Pavon, D.: Cosmological perturbations in warm inflationary models with viscous pressure. Phys. Rev. D 75, 083518 (2007). astro-ph/0703604 [ASTRO-PH]
Landau, L., Lifshitz, E.M.: Mecanique des Fluides. MIR, Moscow (1971)
Huang, K.: Statistical Mechanics. Wiley, New York (1987)
Vallinotto, A., Copeland, E.J., Kolb, E.W., Liddle, A.R., Steer, D.A.: Phys. Rev. D 69, 103519 (2004)
Starobinsky, A.A.: JETP Lett. 82, 169 (2005)
Sanyal, A.K.: Phys. Lett. B 645, 1 (2007)
Kolvisto, T., Mota, D.: Phys. Lett. B 644, 104 (2007)
Kolvisto, T., Mota, D.: Phys. Rev. D 75, 023518 (2007)
Antoniadis, I., Rizos, J., Tamvakis, K.: Nucl. Phys. B 415, 497 (1994)
Mignemi, S., Steward, N.R.: Phys. Rev. D 47, 5259 (1993)
Nojiri, S., Odintsov, S.D., Sasaki, M.: Phys. Rev. D 71, 123509 (2004)
Gognola, G., Eizalde, E., Nojiri, S., Odintsov, S.D., Winstanley, E.: Phys. Rev. D 73, 084007 (2006)
Barrow, J.D.: Class. Quantum Grav. 13, 2965 (1996)
del Campo, S., and Herrera, R.: JCAP 0904, 005 (2009). arXiv:0903.4214 [astro-ph.CO]
Herrera, R., San Martin, E.: Eur. Phys. J. C 71, 1701 (2011). arXiv:1108.1371 [gr-qc]
Setare, M.R., Kamali, V.: JCAP 1208, 034 (2012). arXiv:1210.0742 [hep-th]
Bastero-Gil, M., Berera, A., Cerezo, R., Ramos, R.O., Vicente, G.S.: JCAP 1211, 042 (2012). arXiv:1209.0712 [astro-ph.CO]
Berera, A., Gleiser, M., Ramos, R.O.: Strong dissipative behavior in quantum field theory. Phys. Rev. D 58, 123508 (1998). hep-ph/9803394
Berera, A., Gleiser, M., Ramos, R.O., A first principles warm inflation model that solves the cosmological horizon/flatness problems. Phys. Rev. Lett. 83, 264 (1999) [hep-ph/9809583]
Bastero-Gil, M., Berera, A.: Int. J. Mod. Phys. A 24, 2207 (2009). arXiv:0902.0521 [hep-ph]
Berera, A., Moss, I.G., Ramos, R.O.: Rept. Prog. Phys. 72, 026901 (2009). arXiv:0808.1855 [hep-ph]
Bastero-Gil, M., Berera, A., Ramos, R.O.: JCAP 1109, 033 (2011). arXiv:1008.1929 [hep-ph]
Herrera, R., del Campo, S., Campuzano, C.: Tachyon warm inflationary universe models. JCAP 10, 009 (2006). astro-ph/0610339
del Campo, S., Herrera, R.: Curvaton field and intermediate inflationary universe model. Phys. Rev. D 76, 103503 (2007). arXiv:0710.5524
Linde, A.: Phys. Lett. B 129, 177 (1983)
Bassett, B., Tsujikawa, S., Wands, D.: Rev. Mod. Phys. 78, 537 (2006)
del Campo, S., Herrera, R., Toloza, A.: Tachyon field in intermediate inflation. Phys. Rev. D79, 083507 (2009)
Barrow, J.D., Liddle, A.R.: Phys. Rev. D 47, R5219 (1993)
Antonella Cid, M., del Campo, S., Herrera, R.: Warm inflation on the brane. JCAP 0710, 005 (2007)
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Setare, M.R., Kamali, V. Warm-intermediate inflationary universe model with viscous pressure in high dissipative regime. Gen Relativ Gravit 46, 1698 (2014). https://doi.org/10.1007/s10714-014-1698-y
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DOI: https://doi.org/10.1007/s10714-014-1698-y