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arXiv 0705.3789hep-thgr-qc
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扭曲环面的宇宙学

Cosmology with Twisted Tori

Josef L. P. Karthauser, P. M. Saffin, Mark Hindmarsh

摘要:

考虑了7维椭圆扭曲环面上11维Einstein引力紧化产生的标量场的宇宙学作用,该引力场具有半正定势和部分固定模的吸引力.因此,这种紧化与低能M理论,11维超引力有关。我们发现,慢卷膨胀的模量是不可能的,但有一个新的标度解弗里德曼宇宙学中的大规模模量振荡,但保持恒定的能量密度相对于背景正压流体。

英文摘要:

We consider the cosmological role of the scalar fields generated by the compactification of 11-dimensional Einstein gravity on a 7D elliptic twisted torus, which has the attractive features of giving rise to a positive semi-definite potential, and partially fixing the moduli. This compactification is therefore relevant for low energy M-theory, 11D supergravity. We find that slow-roll inflation with the moduli is not possible, but that there is a novel scaling solution in Friedmann cosmologies in which the massive moduli oscillate but maintain a constant energy density relative to the background barotropic fluid.

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