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arXiv 0909.3525hep-thastro-ph.COgr-qc
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Horava引力的健康延伸

A healthy extension of Horava gravity

D. Blas, O. Pujolas, S. Sibiryakov

摘要:

我们提出了一个自然的扩展Horava的量子引力模型,这是从原来的建议臭名昭著的病态。新模型赋予标量引力子模一个规则的二次作用量,并保持功率计数可重整化。在低能量下,它简化为违反洛伦兹的标量张量引力理论。相对于广义相对论的偏差可以通过适当地选择参数来减弱。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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