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arXiv 0801.2063hep-th
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Anomaly驱动的宇宙学:大助推情景和AdS/CFT Correspondence

Anomaly Driven Cosmology: Big Boost Scenario and AdS/CFT Correspondence

A. O. Barvinsky, C. Deffayet, A. Yu. Kamenshchik

摘要:

我们考虑了最近提出的宇宙量子初始条件的新模型中的宇宙演化。有效的弗里德曼方程包含了量子场的共形反常效应,有趣的是,它表明它们的真空卡西米尔能量是完全屏蔽的,没有引力。宇宙学演化还具有宇宙学加速阶段的新机制。这个阶段之后是一个大的提升奇点--比例因子加速参数快速增长到无穷大。我们还简要讨论了我们的模型,AdS/CFT对应和RS和DGP膜世界之间的关系。

英文摘要:

We consider the cosmological evolution in a recently suggested new model of quantum initial conditions for the Universe. The effective Friedmann equation incorporates the effect of the conformal anomaly of quantum fields and, interestingly, shows that their vacuum Casimir energy is completely screened and does not gravitate. The cosmological evolution also features a new mechanism for a cosmological acceleration stage. This stage is followed by a big boost singularity -- a rapid growth up to infinity of the scale factor acceleration parameter. We also briefly discuss the relation between our model, the AdS/CFT correspondence and RS and DGP braneworlds.

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