On strong coupling in nonrelativistic general covariant theory of gravity
Jun, 2011
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Abstract: (arXiv)
We study the strong coupling problem in the Horava-Melby-Thompson setup of the Horava-Lifshitz gravity with an arbitrary coupling constant , generalized recently by da Silva, where describes the deviation of the theory in the infrared from general relativity that has . We find that a scalar field in the Minkowski background becomes strong coupling for processes with energy higher than , where generically . However, this problem can be cured by introducing a new energy scale , so that , where denotes the suppression energy of high order derivative terms of the theory.- 04.60.-m
- 98.80.Cq
- 98.80.Bp
- field theory: scalar
- gravitation: Horava-Lifshitz
- gravitation: strong coupling
- general relativity
- gravitation: nonrelativistic
- covariance
- infrared
References(55)
Figures(1)