arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1906.03041gr-qc
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拓扑起源的宇宙学常数?

Is the Cosmological Constant of Topological Origin?

M. Le Delliou, J. Lorca Espiro

摘要:

观测到的宇宙学常数的值带来了很大的理论问题。我们发现,宇宙的拓扑结构为它提供了一个天然的来源,在我们观测的宇宙中,将爱因斯坦-嘉当引力动态地限制在广义相对论中,拓扑不变量可以从动态的类精粹拓扑场中导出有效的宇宙学常数。通过黑洞的边界对其进行评估,得出了与观测值相一致的范围,其不确定性为三个数量级。反过来,它提供了宇宙等周常数的测量。

英文摘要:

The observed value of the cosmological constant poses large theoretical problems. We find that topology of the Universe provides a natural source for it. Restricting dynamically an Einstein-Cartan gravity to General Relativity in our observed Universe allows topological invariants to induce an effective cosmological constant from dynamical quintessence-like topological fields. Its evaluation through the boundary of black holes yields a range compatible with the observed value, with uncertainty of three orders of magnitude. In turns, it provides a measurement of the Universe's isoperimetric constant.

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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