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arXiv 0909.3635hep-thhep-ph
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存在额外维时的广义不确定原理

The generalized uncertainty principle in the presence of extra dimensions

Benrong Mu, Houwen Wu, Haitang Yang

摘要:

我们认为,在广义不确定原理(GUP)模型中,参数$β_0$的平方根,乘以普朗克长度$\ell_p$,近似的最小可测距离,随能量标度。由于最小可测长度和额外维度都是量子引力理论提出的,我们研究了基于GUP和一个额外维度的模型,这些额外维度是以$ρ$为半径紧致化的。我们得到了一个启发性的关系式$\sqrt{β_0} \ell_p/ρ\sim {\cal O}(1)$。这种关系也与普朗克尺度和通常的量子力学尺度的预言一致。并对GUP模型的应用范围进行了估计。结果表明,最小可测长度正好是额外维度的紧化半径。

英文摘要:

We argue that in the Generalized Uncertainty Principle (GUP) model, the parameter $β_0$ whose square root, multiplied by Planck length $\ell_p$, approximates the minimum measurable distance, varies with energy scales. Since minimal measurable length and extra dimensions are both suggested by quantum gravity theories, we investigate models based on GUP and one extra dimension, compactified with radius $ρ$. We obtain an inspiring relation $\sqrt{β_0} \ell_p/ρ\sim {\cal O}(1)$. This relation is also consistent with predictions at Planck scale and usual quantum mechanics scale. We also make estimations on the application range of the GUP model. It turns out that the minimum measurable length is exactly the compactification radius of the extra dimension.

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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