期刊
PHYSICAL REVIEW LETTERS
卷 104, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.181302
关键词
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资金
- Swiss Science Foundation
- Tomalla Foundation
- RFBR [08-02-00768-a]
- Russian Federation [NS-1616.2008.2]
We propose a natural extension of Horava's model for quantum gravity, which is free from the notorious pathologies of the original proposal. The new model endows the scalar graviton mode with a regular quadratic action and remains power-counting renormalizable. At low energies, it reduces to a Lorentz-violating scalar-tensor gravity theory. The deviations with respect to general relativity can be made weak by an appropriate choice of parameters.
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