R{sup 2}log R quantum corrections and the inflationary observables

R{sup 2}log R quantum corrections and the inflationary observables

We study a model of inflation with terms quadratic and logarithmic in the Ricci scalar, where the gravitational action is f(R)=R+α R{sup 2}+β R{sup 2} ln R. These terms are expected to arise from one loop corrections involving matter fields in curved space-time. The spectral index n{sub s} and the t...

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Veröffentlicht in:Journal of cosmology and astroparticle physics 2014-09, Vol.2014 (9)
Hauptverfasser: Ben-Dayan, Ido, Westphal, Alexander, Jing, Shenglin, Torabian, Mahdi, Zarate, Lucila
Format: Artikel
Sprache:eng
Schlagworte:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
CORRECTIONS
COSMOLOGICAL INFLATION
MATHEMATICAL SPACE
MATTER
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
SCALARS
SPACE-TIME
TENSORS
YIELDS
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Zusammenfassung:We study a model of inflation with terms quadratic and logarithmic in the Ricci scalar, where the gravitational action is f(R)=R+α R{sup 2}+β R{sup 2} ln R. These terms are expected to arise from one loop corrections involving matter fields in curved space-time. The spectral index n{sub s} and the tensor to scalar ratio yield 4 × 10{sup -4}∼
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2014/09/005