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arXiv 2104.00802gr-qchep-th
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红外量子引力现象

Quantum Gravity Phenomenology in the Infrared

Laurent Freidel, Jerzy Kowalski-Glikman, Robert G. Leigh, Djordje Minic

摘要:

传统上,量子引力效应与短距离和高能量有关。在这篇文章中,我们认为,也许令人惊讶的是,量子引力可能有重要的后果的现象学的红外。我们的讨论围绕着一个量子引力的概念展开,这个概念涉及到元弦理论中出现的量子时空的概念。这个理论允许宇宙学宇宙的演化,其中弦对偶自由度随着宇宙年龄的增长而解耦。重要的是,这种量子引力的实现允许包含基本长度尺度,而不会引入洛伦兹对称性的基本破缺。这种机制似乎有可能成为一种全新的暗物质/能量来源。这种情况下最简单的观测结果很可能是宇宙演化过程中出现的残余红外修正。

英文摘要:

Quantum gravity effects are traditionally tied to short distances and high energies. In this essay we argue that, perhaps surprisingly, quantum gravity may have important consequences for the phenomenology of the infrared. We center our discussion around a conception of quantum gravity involving a notion of quantum spacetime that arises in metastring theory. This theory allows for an evolution of a cosmological Universe in which string-dual degrees of freedom decouple as the Universe ages. Importantly such an implementation of quantum gravity allows for the inclusion of a fundamental length scale without introducing the fundamental breaking of Lorentz symmetry. The mechanism seems to have potential for an entirely novel source for dark matter/energy. The simplest observational consequences of this scenario may very well be residual infrared modifications that emerge through the evolution of the Universe.

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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