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  1. Download a PDF of the paper titled Speeding up $N$-body simulations of modified gravity: Chameleon screening models, by Sownak Bose and 15 other authors
    Author:Sownak Bose, Baojiu Li, Alexandre Barreira, Jian-hua He, Wojciech A. Hellwing, Kazuya Koyama, Claudi...Published:2016
  2. Was this helpful?
  3. iopscience.iop.org

    [90] A. Barreira, S. Bose and B. Li, 2015 Speeding up N-body simulations of modified gravity: Vainshtein screening models J. Cosmol. Astropart. Phys. 2015 12 059. Google Scholar [91] B. Li and G. Efstathiou, 2012 An extended excursion set approach to structure formation in chameleon models, Mon. Not. Roy. Astron. Soc. 421 1431 [1110.6440]
    Author:Sownak Bose, Baojiu Li, Alexandre Barreira, Jian-hua He, Wojciech A. Hellwing, Kazuya Koyama, Claudi...Published:2017
  4. Speeding up N-body simulations of modified gravity: Chameleon screening models Sownak Bose, 1,Baojiu Li, yAlexandre Barreira,2 Jian-hua He,1 Wojciech A. Hellwing,3,4 Kazuya Koyama,3 Claudio Llinares,1 and Gong-Bo Zhao5,3 1Institute for Computational Cosmology, Department of Physics, Durham University, Durham DH1 3LE, UK 2Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85741 ...
  5. link.springer.com

    Speeding up N-Body Simulations of Modified Gravity: Chameleon Screening Models 6.1 Introduction ... 1The content of this Chapter is based on the article Bose et al. 'Speeding up N-body simula-tions of modified gravity: chameleon screening models', Journal of Cosmology and Astroparticle Physics, Volume 2015, Issue 2, published 24 February ...
    Author:Sownak Bose, Baojiu Li, Alexandre Barreira, Jian-hua He, Wojciech A. Hellwing, Kazuya Koyama, Claudi...Published:2017
  6. ui.adsabs.harvard.edu

    We describe and demonstrate the potential of a new and very efficient method for simulating certain classes of modified gravity theories, such as the widely studied f(R) gravity models. High resolution simulations for such models are currently very slow due to the highly nonlinear partial differential equation that needs to be solved exactly to predict the modified gravitational force. This ...
    Author:Sownak Bose, Baojiu Li, Alexandre Barreira, Jian-hua He, Wojciech A. Hellwing, Kazuya Koyama, Claudi...Published:2017
  7. We introduce and demonstrate the power of a method to speed up current iterative techniques for N-body modified gravity simulations. Our method is based on the observation that the accuracy of the final result is not compromised if the calculation of the fifth force becomes less accurate, but substantially faster, in high-density regions where it is weak due to screening. We focus on the nDGP ...
  8. researchgate.net

    Speeding up N-body simulations of modified gravity: Chameleon screening models Sownak Bose, 1, ∗ Baojiu Li, 1, † Alexandre Barreira, 2 Jian-hua He, 1 W ojciech A. Hellwing, 3, 4 Kazuya Koyama ...
  9. researchportal.port.ac.uk

    We describe and demonstrate the potential of a new and very efficient method for simulating certain classes of modified gravity theories, such as the widely studied ƒ (R) gravity models.High resolution simulations for such models are currently very slow due to the highly nonlinear partial differential equation that needs to be solved exactly to predict the modified gravitational force.
  10. durham-repository.worktribe.com

    We show that this new method greatly improves the performance and efficiency of f(R) simulations. For example, a test simulation with 5123 particles in a box of size 512 Mpc/h is now 5 times faster than before, while a Millennium-resolution simulation for f(R) gravity is estimated to be more than 20 times faster than with the old method.

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