Remarks on the maximum luminosity

Vitor Cardoso, Taishi Ikeda, Christopher J. Moore, and Chul-Moon Yoo
Phys. Rev. D 97, 084013 – Published 10 April 2018

Abstract

The quest for fundamental limitations on physical processes is old and venerable. Here, we investigate the maximum possible power, or luminosity, that any event can produce. We show, via full nonlinear simulations of Einstein’s equations, that there exist initial conditions which give rise to arbitrarily large luminosities. However, the requirement that there is no past horizon in the spacetime seems to limit the luminosity to below the Planck value, LP=c5/G. Numerical relativity simulations of critical collapse yield the largest luminosities observed to date, 0.2LP. We also present an analytic solution to the Einstein equations which seems to give an unboundedly large luminosity; this will guide future numerical efforts to investigate super-Planckian luminosities.

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  • Received 31 January 2018

DOI:https://doi.org/10.1103/PhysRevD.97.084013

© 2018 American Physical Society

Physics Subject Headings (PhySH)

General PhysicsGravitation, Cosmology & Astrophysics

Authors & Affiliations

Vitor Cardoso1,2, Taishi Ikeda3, Christopher J. Moore1,4,*, and Chul-Moon Yoo3

  • 1Centro de Astrofísica e Gravitação—CENTRA, Departamento de Física, Instituto Superior Técnico—IST, Universidade de Lisboa—UL, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
  • 2Perimeter Institute for Theoretical Physics, 31 Caroline Street, North Waterloo, Ontario N2L 2Y5, Canada
  • 3Department of Physics, Graduate School of Science, Nagoya University, Nagoya 464-6602, Japan
  • 4DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA, United Kingdom

  • *christopher.moore@tecnico.ulisboa.pt

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Vol. 97, Iss. 8 — 15 April 2018

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