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N-body simulations for ƒ (R) gravity using a self-adaptive particle-mesh code

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We perform high-resolution N-body simulations for f(R) gravity based on a self-adaptive particle-mesh code MLAPM. The chameleon mechanism that recovers general relativity on small scales is fully taken into account by self-consistently solving the nonlinear equation for the scalar field. We independently confirm the previous simulation results, including the matter power spectrum, halo mass function, and density profiles, obtained by Oyaizu et al. [Phys. Rev. D 78, 123524 (2008)] and Schmidt et al. [Phys. Rev. D 79, 083518 (2009)], and extend the resolution up to k∼20  h/Mpc for the measurement of the matter power spectrum. Based on our simulation results, we discuss how the chameleon mechanism affects the clustering of dark matter and halos on full nonlinear scales.
Original languageEnglish
Pages (from-to)044007
Number of pages1
JournalPhysical Review D
Issue number4
Publication statusPublished - 2 Feb 2011


  • 1011.1257v2.pdf

    Rights statement: The final published version of this article by Gong-Bo Zhao et al., 'N-body simulations for ƒ (R) gravity using a self-adaptive particle-mesh code,' Phys. Rev. D 83, 044007, can be located online at h © 2011 American Physical Society

    Accepted author manuscript (Post-print), 1.05 MB, PDF document

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