Journal
PHYSICS LETTERS B
Volume 659, Issue 5, Pages 891-893Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2007.12.019
Keywords
cosmological constant; quantum cosmology; Euclidean quantum gravity
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Hawking proposed that the cosmological constant is probably zero in quantum cosmology. Duff claimed that Hawking's proof is invalidated. Using the right configuration for the wave function of the universe, we provide a complete proof. (C) 2007 Elsevier B.V. All rights reserved.
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