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arXiv 0809.4900hep-thastro-phgr-qchep-ph
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广义相对论与粒子物理学之间的宇宙学相互作用

Cosmological interplay between general relativity and particle physics

Michael Maziashvili

摘要:

我们清楚地制定和研究进一步的宇宙学背景下的有效场论与引力相互作用的猜想。这个猜想源于这样一个事实,即量子理论和引力的融合通常表明存在固有的紫外截止。注意到这个UV截止的物理起源,即背景度量波动不允许QFT以比背景空间分辨率更好的精度操作,我们推测相反的陈述也可能是正确的。也就是说,有效场论不能以比其固有UV尺度所允许的更好的精度感知背景空间。这个猜想的一些微妙之处和宇宙学的影响进行了探讨。

英文摘要:

We clearly formulate and study further a conjecture of effective field theory interaction with gravity in the cosmological context. The conjecture stems from the fact that the melding of quantum theory and gravity typically indicates the presence of an inherent UV cutoff. Taking note of the physical origin of this UV cutoff, that the background metric fluctuations does not allow QFT to operate with a better precision than the background space resolution, we conjecture that the converse statement might also be true. That is, an effective field theory could not perceive the background space with a better precision than it is allowed by its intrinsic UV scale. Some of the subtleties and cosmological implications of this conjecture are explored.

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