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Is cosmic speed-up due to new gravitational physics?
2004 · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · DOI 10.1103/physrevd.70.043528
We show that cosmic acceleration can arise due to very tiny corrections to the usual gravitational action of general relativity, of the form ${R}^{\ensuremath{-}n}$ with $n>0.$ This model eliminates the need for a nonzero cosmological constant or any other form of dark energy, attributing a purely gravitational origin to the acceleration of the universe.
Read paperCo-authors
Sean M. Carroll
University of Chicago
1 shared publicationVikram Duvvuri
University of Chicago
1 shared publicationMark Trodden
Syracuse University
1 shared publication