Non-scale-invariant density perturbations from chaotic extended inflation | Zendy

Silvia Mollerach | Zendy; S. Matarrese | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Non-scale-invariant density perturbations from chaotic extended inflation

Author(s) -

Silvia Mollerach,

S. Matarrese

Publication year - 1992

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Language(s) - English

Resource type - Journals

eISSN - 1089-4918

pISSN - 0556-2821

DOI - 10.1103/physrevd.45.1961

Subject(s) - physics , inflaton , scale invariance , chaotic , spectral density , inflation (cosmology) , invariant (physics) , scalar field , fluctuation spectrum , scalar (mathematics) , classical mechanics , statistical physics , quantum electrodynamics , mathematical physics , theoretical physics , quantum mechanics , statistics , geometry , mathematics , artificial intelligence , computer science

Chaotic inflation is analyzed in the frame of scalar-tensor theories of gravity. Fluctuations in the energy density arise from quantum fluctuations of the Brans-Dicke field and of the inflaton field. The spectrum of perturbations is studied for a class of models: it is non-scale-invariant and, for certain values of the parameters, it has a peak. If the peak appears at astrophysically interesting scales it may help to reconcile the cold-dark-matter scenario for structure formation with large-scale observations

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research