Cosmological perturbations in warm inflationary models with viscous pressure

Sergio Del Campo, Ramón Herrera, Diego Pavón

Research output: Contribution to journalArticlepeer-review

63 Scopus citations


Scalar and tensorial cosmological perturbations generated in warm inflationary scenarios whose matter-radiation fluid is endowed with a viscous pressure are considered. Recent observational data from the Wilkinson Microwave Anisotropy Probe experiment are employed to restrict the parameters of the model. Although the effect of this pressure on the matter power spectrum is of the order of a few percent, it may be detected in future experiments.

Original languageEnglish
Article number083518
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number8
StatePublished - 17 Apr 2007


Dive into the research topics of 'Cosmological perturbations in warm inflationary models with viscous pressure'. Together they form a unique fingerprint.

Cite this