Mass Density Perturbations from Inflation with Thermal Dissipation

Details Mass Density Perturbations from Inflation with Thermal Dissipation Mass Density Perturbations from Inflation with Thermal Dissipation

1999-01-15

arxiv.org/abs/astro-ph/9901195v1

Phys.Rev. D59 (1999) 083503

Astronomy and Astrophysics

Astrophysics

23 pages, 7 figures, REVTex; Phys. Rev. D in press

Scientific paper

10.1103/PhysRevD.59.083503

We study the power spectrum of the mass density perturbations in an inflation scenario that includes thermal dissipation. We show that the condition on which the thermal fluctuations dominate the primordial density perturbations can easily be realized even for weak dissipation, i.e., the rate of dissipation is less than the Hubble expansion. We find that our spectrum of primordial density perturbations follows a power law behavior, and exhibits a ``thermodynamical'' feature -- the amplitude and power index of the spectrum depend mainly on the thermodynamical variable $M$, the inflation energy scale. Comparing this result with the observed temperature fluctuations of the cosmic microwave background, we find that both amplitude and index of the power spectrum can be fairly well fitted if $M \sim 10^{15}-10^{16}$ GeV.

Affiliated with

Also associated with

No associations

Rating

Mass Density Perturbations from Inflation with Thermal Dissipation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Mass Density Perturbations from Inflation with Thermal Dissipation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mass Density Perturbations from Inflation with Thermal Dissipation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-597301