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Title: A viable logarithmic f(R) model for inflation

Abstract

Inflation in the framework of f(R) modified gravity is revisited. We study the conditions that f(R) should satisfy in order to lead to a viable inflationary model in the original form and in the Einstein frame. Based on these criteria we propose a new logarithmic model as a potential candidate for f(R) theories aiming to describe inflation consistent with observations from Planck satellite (2015). The model predicts scalar spectral index 0.9615

Authors:
;  [1];  [1];  [2]
  1. Center for Fundamental Physics, Zewail City of Science and Technology,6 October City, Giza (Egypt)
  2. (Egypt)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22572133
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2016; Journal Issue: 08; Other Information: PUBLISHER-ID: JCAP08(2016)043; OAI: oai:repo.scoap3.org:16857; cc-by Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMOLOGICAL INFLATION; COUPLING; EINSTEIN FIELD EQUATIONS; GENERAL RELATIVITY THEORY; GEV RANGE; GRAVITATION; INFLATIONARY UNIVERSE; METRICS

Citation Formats

Amin, M., Khalil, S., Salah, M., and Department of Mathematics, Faculty of Science, Cairo University,Giza. A viable logarithmic f(R) model for inflation. United States: N. p., 2016. Web. doi:10.1088/1475-7516/2016/08/043.
Amin, M., Khalil, S., Salah, M., & Department of Mathematics, Faculty of Science, Cairo University,Giza. A viable logarithmic f(R) model for inflation. United States. doi:10.1088/1475-7516/2016/08/043.
Amin, M., Khalil, S., Salah, M., and Department of Mathematics, Faculty of Science, Cairo University,Giza. 2016. "A viable logarithmic f(R) model for inflation". United States. doi:10.1088/1475-7516/2016/08/043.
@article{osti_22572133,
title = {A viable logarithmic f(R) model for inflation},
author = {Amin, M. and Khalil, S. and Salah, M. and Department of Mathematics, Faculty of Science, Cairo University,Giza},
abstractNote = {Inflation in the framework of f(R) modified gravity is revisited. We study the conditions that f(R) should satisfy in order to lead to a viable inflationary model in the original form and in the Einstein frame. Based on these criteria we propose a new logarithmic model as a potential candidate for f(R) theories aiming to describe inflation consistent with observations from Planck satellite (2015). The model predicts scalar spectral index 0.9615},
doi = {10.1088/1475-7516/2016/08/043},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 08,
volume = 2016,
place = {United States},
year = 2016,
month = 8
}
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