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Title: Cosmological behavior of Bekenstein's modified theory of gravity

Abstract

We study the background cosmology governed by the tensor-vector-scalar theory of gravity proposed by Bekenstein. We consider a broad family of functions that lead to modified gravity and calculate the evolution of the field variables both numerically and analytically. We find a range of possible behaviors, from scaling to the late time domination of either the additional gravitational degrees of freedom or the background fluid.

Authors:
;  [1];  [2];  [3];  [4];  [5]
  1. Astrophysics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH (United Kingdom)
  2. Institute for Theoretical Physics, University of Heidelberg, 69120 Heidelberg (Germany)
  3. (Norway)
  4. (Canada)
  5. Perimeter Institute, Waterloo, Ontario N2L 2Y5 (Canada)
Publication Date:
OSTI Identifier:
21020132
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevD.75.063508; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMOLOGY; DEGREES OF FREEDOM; GRAVITATION; SCALARS; TENSORS; VECTORS

Citation Formats

Bourliot, F., Ferreira, P. G., Mota, D. F., Institute of Theoretical Astrophysics, University of Oslo, Box 1029, 0315 Oslo, Perimeter Institute, Waterloo, Ontario N2L 2Y5, and Skordis, C. Cosmological behavior of Bekenstein's modified theory of gravity. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.063508.
Bourliot, F., Ferreira, P. G., Mota, D. F., Institute of Theoretical Astrophysics, University of Oslo, Box 1029, 0315 Oslo, Perimeter Institute, Waterloo, Ontario N2L 2Y5, & Skordis, C. Cosmological behavior of Bekenstein's modified theory of gravity. United States. doi:10.1103/PHYSREVD.75.063508.
Bourliot, F., Ferreira, P. G., Mota, D. F., Institute of Theoretical Astrophysics, University of Oslo, Box 1029, 0315 Oslo, Perimeter Institute, Waterloo, Ontario N2L 2Y5, and Skordis, C. Thu . "Cosmological behavior of Bekenstein's modified theory of gravity". United States. doi:10.1103/PHYSREVD.75.063508.
@article{osti_21020132,
title = {Cosmological behavior of Bekenstein's modified theory of gravity},
author = {Bourliot, F. and Ferreira, P. G. and Mota, D. F. and Institute of Theoretical Astrophysics, University of Oslo, Box 1029, 0315 Oslo and Perimeter Institute, Waterloo, Ontario N2L 2Y5 and Skordis, C.},
abstractNote = {We study the background cosmology governed by the tensor-vector-scalar theory of gravity proposed by Bekenstein. We consider a broad family of functions that lead to modified gravity and calculate the evolution of the field variables both numerically and analytically. We find a range of possible behaviors, from scaling to the late time domination of either the additional gravitational degrees of freedom or the background fluid.},
doi = {10.1103/PHYSREVD.75.063508},
journal = {Physical Review. D, Particles Fields},
number = 6,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}
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