期刊
PHYSICS LETTERS B
卷 688, 期 4-5, 页码 350-355出版社
ELSEVIER
DOI: 10.1016/j.physletb.2010.03.073
关键词
Quantum gravity; Quantum field theory; Horava gravity; Lifshitz-type theories
We show that, contrary to the claim made in arXiv:0911.1299, the extended Horava gravity model proposed in arXiv:0909.3525 does not suffer from a strong coupling problem. By studying the observational constraints on the model we determine the bounds on the scale of the ultraviolet modification for which the proposal yields a phenomenologically viable, renormalizable and weakly coupled model of quantum gravity. (c) 2010 Elsevier B.V. All rights reserved.
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