How big is a black hole?

Marios Christodoulou and Carlo Rovelli
Phys. Rev. D 91, 064046 – Published 20 March 2015

Abstract

The three-dimensional volume inside a spherical black hole can be defined by extending an intrinsic flat-spacetime characterization of the volume inside a two-sphere. For a collapsed object, the volume grows with time since the collapse, reaching a simple asymptotic form, has a compelling geometrical interpretation. Perhaps surprisingly, it is large. The result may have relevance for the discussion on the information paradox.

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  • Received 29 January 2015

DOI:https://doi.org/10.1103/PhysRevD.91.064046

© 2015 American Physical Society

Authors & Affiliations

Marios Christodoulou and Carlo Rovelli

  • CPT, Aix-Marseille Université, Université de Toulon, CNRS, Samy Maroun Center for Time, Space and the Quantum, Case 907, F-13288 Marseille, France

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Issue

Vol. 91, Iss. 6 — 15 March 2015

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