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arXiv 2402.02512astro-ph.COgr-qc
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解决 Yukawa 宇宙学中的哈勃张力?

Addressing the Hubble tension in Yukawa cosmology?

Kimet Jusufi, Esteban González, Genly Leon

AI总结:

该研究利用引力子波长的不确定性关系解释哈勃常数随红移的变化,指出哈勃张力源于测量固有的量子力学限制,并暗示引力子质量可能随尺度变化。

摘要:

在 Yukawa 宇宙学中,最近的一项发现揭示了重子物质与暗区(暗物质与暗能量)之间的关系。该关系由参数 α 和长程相互作用参数 λ(引力子的固有属性)描述。将不确定性关系应用于引力子,提出了一个引人深思的问题:哈勃常数(H0)的测量精度是否存在量子力学极限?我们认为,引力子波长 λ 的不确定性关系可以用来解释 H0 随红移的变化。我们表明,时间的不确定性与哈勃常数的值呈负相关。这意味着哈勃常数的测量本质上与长度尺度(红移)相关,并与时间的不确定性相联系。在宇宙学尺度上,我们发现时间的不确定性与回溯时间量相关。对于高红移值的测量,时间的不确定性更大,这导致哈勃常数的值更小。相反,对于红移值较小的局部测量,时间的不确定性更小,导致哈勃常数的值更大。因此,由于不确定性关系,哈勃张力被认为源于宇宙学测量中固有的基本限制。最后,我们的发现表明,引力子的质量随特定尺度波动,暗示引力子可能存在质量变化机制。

英文摘要:

In Yukawa cosmology, a recent discovery revealed a relationship between baryonic matter and the dark sector. The relation is described by the parameter α and the long-range interaction parameter λ - an intrinsic property of the graviton. Applying the uncertainty relation to the graviton raises a compelling question: Is there a quantum mechanical limit to the measurement precision of the Hubble constant (H0)? We argue that the uncertainty relation for the graviton wavelength λ can be used to explain a running of H0 with redshift. We show that the uncertainty in time has an inverse correlation with the value of the Hubble constant. That means that the measurement of the Hubble constant is intrinsically linked to length scales (redshift) and is connected to the uncertainty in time. On cosmological scales, we found that the uncertainty in time is related to the look-back time quantity. For measurements with a high redshift value, there is more uncertainty in time, which leads to a smaller value for the Hubble constant. Conversely, there is less uncertainty in time for local measurements with a smaller redshift value, resulting in a higher value for the Hubble constant. Therefore, due to the uncertainty relation, the Hubble tension is believed to arise from fundamental limitations inherent in cosmological measurements. Finally, our findings indicate that the mass of the graviton fluctuates with specific scales, suggesting a possible mass-varying mechanism for the graviton.

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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