Field equations and particle motion in covariant emergent gravity

Yen-Kheng Lim and Qing-hai Wang
Phys. Rev. D 98, 124029 – Published 20 December 2018

Abstract

We derive the full set of field equations based on Hossenfelder’s recent covariant formulation of the emergent gravity model, along with perturbative and exact solutions. The exact solution describes a static, spherically symmetric spacetime with a nontrivial vector field that plays the role of dark matter under the emergent gravity paradigm. Equations of motion of relativistic test masses are derived and are shown to reduce to modified Newtonian dynamics with additional relativistic corrections. It is also shown that the presence of the vector field gives an additional positive contribution to the bending angle in the deflection of light.

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  • Received 14 June 2018

DOI:https://doi.org/10.1103/PhysRevD.98.124029

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Yen-Kheng Lim1,2,* and Qing-hai Wang1,†

  • 1Department of Physics, National University of Singapore, 117551, Singapore
  • 2Department of Mathematics, Xiamen University Malaysia, 43900 Sepang, Malaysia

  • *yenkheng.lim@xmu.edu.my
  • qhwang@nus.edu.sg

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Issue

Vol. 98, Iss. 12 — 15 December 2018

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