Modified gravity revealed along geodesic tracks

  • The study of the dynamics of a two-body system in modified gravity constitutes a more complex problem than in Newtonian gravity. Numerical methods are typically needed to solve the equations of geodesics. Despite the complexity of the problem, the study of a two-body system in f(R) gravity leads to a new exciting perspective hinting the right strategy to adopt in order to probe modified gravity. Our results point out some differences between the semiclassical (Newtonian) approach, and the relativistic (geodesic) one thus suggesting that the latter represents the best strategy for future tests of modified theories of gravity. Finally, we have also highlighted the capability of forthcoming observations to serve as smoking gun of modified gravity revealing a departure from GR or further reducing the parameter space of f(R) gravity.

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Author:Mariafelicia De LaurentisORCiD, Ivan De Martino, Ruth Lazkoz
Parent Title (English):The European Physical Journal C
Place of publication:Berlin ; Heidelberg
Document Type:Article
Date of Publication (online):2018/11/11
Date of first Publication:2018/11/11
Publishing Institution:Universit├Ątsbibliothek Johann Christian Senckenberg
Release Date:2020/05/17
Issue:Article number: 916
Page Number:6
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - Namensnennung-Nicht kommerziell - Keine Bearbeitung 4.0