2011/08/08 by Je-An Gu, Wei-Ting Lin, Gu, Je-An +1
Earth and Planetary Sciences · Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Geophysics and Gravity Measurements #High Energy Physics - Phenomenology (hep-ph) #astro-ph.CO #gr-qc #hep-ph
paper · pdf · doi:10.48550/arxiv.1108.1782
12 pages
arxiv created 2011/08/08 · openalex publication_date 2011/08/08 · arxiv updated 2011/08/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the solar-system constraint on the f(R) theory of modified gravity with chameleon mechanism, where f(R) represents the deviation from general relativity in the gravity action. We obtain a stringent bound to a general, non-constant deviation function f(R): -10-15 < df/dR < 0 when R ~ 3*105*H02, and a loose bound: 0 < R*d(df/dR)/dR < 2/5 when R > 3*105*H02, by requiring the thin-shell condition in the solar system, particularly in the atmosphere of the Earth. These bounds can be conveniently utilized to test the f(R) models with given functional forms of f(R) and to obtain the constraints on the parameters therein. For demonstration we apply these bounds to several widely considered f(R) models. (H0: Hubble constant)