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

Abstract

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{approx}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.

Authors:
;  [1];  [2]
  1. Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO1 3FX (United Kingdom)
  2. DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
Publication Date:
OSTI Identifier:
21504976
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 83; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevD.83.044007; (c) 2011 American Institute of Physics; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DENSITY; EQUATIONS; GENERAL RELATIVITY THEORY; GRAVITATION; MASS; NONLINEAR PROBLEMS; NONLUMINOUS MATTER; PARTICLES; RESOLUTION; SCALAR FIELDS; SIMULATION; SPECTRA; FIELD THEORIES; MATTER; PHYSICAL PROPERTIES; RELATIVITY THEORY

Citation Formats

Gongbo, Zhao, Koyama, Kazuya, Baojiu, Li, and Kavli Institute for Cosmology Cambridge, Madingley Road, Cambridge CB3 0HA. N-body simulations for f(R) gravity using a self-adaptive particle-mesh code. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.83.044007.
Gongbo, Zhao, Koyama, Kazuya, Baojiu, Li, & Kavli Institute for Cosmology Cambridge, Madingley Road, Cambridge CB3 0HA. N-body simulations for f(R) gravity using a self-adaptive particle-mesh code. United States. https://doi.org/10.1103/PHYSREVD.83.044007
Gongbo, Zhao, Koyama, Kazuya, Baojiu, Li, and Kavli Institute for Cosmology Cambridge, Madingley Road, Cambridge CB3 0HA. 2011. "N-body simulations for f(R) gravity using a self-adaptive particle-mesh code". United States. https://doi.org/10.1103/PHYSREVD.83.044007.
@article{osti_21504976,
title = {N-body simulations for f(R) gravity using a self-adaptive particle-mesh code},
author = {Gongbo, Zhao and Koyama, Kazuya and Baojiu, Li and Kavli Institute for Cosmology Cambridge, Madingley Road, Cambridge CB3 0HA},
abstractNote = {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{approx}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.},
doi = {10.1103/PHYSREVD.83.044007},
url = {https://www.osti.gov/biblio/21504976}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 4,
volume = 83,
place = {United States},
year = {Tue Feb 15 00:00:00 EST 2011},
month = {Tue Feb 15 00:00:00 EST 2011}
}