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Structure formation with a self-tuning scalar field

Abstract:

A scalar field with an exponential potential has the particular property that it is attracted into a solution in which its energy scales as the dominant component (radiation or matter) of the Universe, contributing a fixed fraction of the total energy density. We study the growth of perturbations in a CDM dominated $\Omega=1$ universe with this extra field, with an initial flat spectrum of adiabatic fluctuations. The observational constraints from structure formation are satisfied as well, or...

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Publisher copy:
10.1103/PhysRevLett.79.4740

Authors


Ferreira, PG More by this author
Journal:
Phys.Rev.Lett.
Volume:
79
Pages:
4740-4743
Publication date:
1997-07-25
DOI:
URN:
uuid:a124f495-ddc1-4ac1-9060-27877d234234
Source identifiers:
208133
Local pid:
pubs:208133
Keywords:

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