Consistent Extension of Horava Gravity

被引:463
作者
Blas, D. [1 ]
Pujolas, O. [2 ]
Sibiryakov, S. [1 ,3 ]
机构
[1] Ecole Polytech Fed Lausanne, LPPC, ITP, FSB, CH-1015 Lausanne, Switzerland
[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
[3] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia
关键词
D O I
10.1103/PhysRevLett.104.181302
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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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页数:4
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