Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-06-09
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
Essay written for FQXi essay competition "What is Ultimately Possible in Physics", Third Prize Winner (based on Phys. Rev. Let
Scientific paper
Black holes harbor a spacetime singularity of infinite curvature, where classical spacetime physics breaks down, and current theory cannot predict what will happen. However, the singularity is invisible from the outside because strong gravity traps all signals, even light, behind an event horizon. In this essay we discuss whether it might be possible to destroy the horizon, if a body is tossed into the black hole so as to make it spin faster and/or have more charge than a certain limit. It turns out that one could expose a "naked" singularity if effects of the body's own gravity can be neglected. We suspect however that such neglect is unjustified.
Jacobson Ted
Sotiriou Thomas P.
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