Effective metric outside bootstrapped Newtonian sources

Roberto Casadio, Andrea Giusti, Iberê Kuntz, and Giulio Neri
Phys. Rev. D 103, 064001 – Published 1 March 2021

Abstract

We determine the complete space-time metric from the bootstrapped Newtonian potential generated by a static spherically symmetric source in the surrounding vacuum. This metric contains post-Newtonian parameters which can be further used to constrain the underlying dynamical theory and quantum state of gravity. For values of the post-Newtonian parameters within experimental bounds, the reconstructed metric appears very close to the Schwarzschild solution of general relativity in the whole region outside the event horizon. The latter is however larger in size for the same value of the mass compared to the Schwarzschild case.

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  • Received 17 January 2021
  • Accepted 10 February 2021

DOI:https://doi.org/10.1103/PhysRevD.103.064001

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Roberto Casadio1,2,*, Andrea Giusti3,†, Iberê Kuntz1,2,‡, and Giulio Neri1,§

  • 1Dipartimento di Fisica e Astronomia, Università di Bologna, via Irnerio 46, 40126 Bologna, Italy
  • 2I.N.F.N., Sezione di Bologna, I.S. FLAG viale B. Pichat 6/2, 40127 Bologna, Italy
  • 3Department of Physics and Astronomy, Bishop’s University, 2600 College Street, Sherbrooke, Québec J1M 1Z7, Canada

  • *casadio@bo.infn.it
  • agiusti@ubishops.ca
  • kuntz@bo.infn.it
  • §giulio.neri3@studio.unibo.it

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Vol. 103, Iss. 6 — 15 March 2021

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