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arXiv 1012.4605gr-qcastro-ph.COhep-th
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F(R)Horava-Lifshitz引力的宇宙学解

Cosmological solutions in F(R) Horava-Lifshitz gravity

Diego Sáez-Gómez

摘要:

本文研究了F(R)引力对最近提出的新引力理论Horava-Lifshitz引力的推广,它提供了一种通过破坏Lorentz不变性使理论幂次计数重正化的方法。结果表明,在这种扩展的框架下,暗能量可以很好地用引力来解释。本文还探讨了在同一机制下统一暴胀和晚期加速的可能性,为加速膨胀提供了一个自然的解释。

英文摘要:

At the present work, it is studied the extension of F (R) gravities to the new recently proposed theory of gravity, the so-called Horava-Lifshitz gravity, which provides a way to make the theory power counting renormalizable by breaking Lorentz invariance. It is showed that dark energy can be well explained in the frame of this extension, just in terms of gravity. It is also explored the possibility to unify inflation and late-time acceleration under the same mechanism, providing a natural explanation the accelerated expansion.

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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