The value of singularities |
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| Authors: | Gary T. Horowitz Robert Myers |
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| Affiliation: | (1) Department of Physics, University of California, 93106 Santa Barbara, California, USA;(2) Department of Physics, McGill University, H3A 2T8 Montréal, Québec, Canada |
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| Abstract: | We point out that spacetime singularities play a useful role in gravitational theories by eliminating unphysical solutions. In particular, we argue that any modification of general relativity which is completely nonsingular cannot have a stable ground state. This argument applies both to classical extensions of general relativity, and to candidate quantum theories of gravity.This essay received the first award from the Gravity Research Foundation, 1995-Ed. |
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