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arXiv 1002.4651gr-qchep-th
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量子非引力与恒星坍缩

Quantum Non-Gravity and Stellar Collapse

C. Barcelo, L. J. Garay, G. Jannes

摘要:

观测结果结合对凝聚态系统中的模拟引力和突现引力的分析,支持可能存在两种与量子引力相关的不同能量标度的可能性:设定量子引力效应开始的标度$E_B$(与普朗克标度相关)和更高的标度$E_L$,标志着洛伦兹对称性的破缺。我们对这两个尺度提出了一个自然的解释:$E_L$是一个能量尺度,在这个尺度之下,一个特殊的相对论性时空就会出现; $E_B$是一个尺度,在这个尺度之下,这个时空的几何形状就会弯曲。这意味着,围绕$E_B$的第一个“量子”引力效应可能只是引力逐渐关闭,留下一个有效的闵可夫斯基量子场论直到$E_L$量级的更高能量。这种情况可能会对引力坍缩产生重要影响,因为它为恒星坍缩的最终状态开辟了新的可能性,而不是蒸发黑洞。

英文摘要:

Observational indications combined with analyses of analogue and emergent gravity in condensed matter systems support the possibility that there might be two distinct energy scales related to quantum gravity: the scale that sets the onset of quantum gravitational effects $E_B$ (related to the Planck scale) and the much higher scale $E_L$ signalling the breaking of Lorentz symmetry. We suggest a natural interpretation for these two scales: $E_L$ is the energy scale below which a special relativistic spacetime emerges, $E_B$ is the scale below which this spacetime geometry becomes curved. This implies that the first `quantum' gravitational effect around $E_B$ could simply be that gravity is progressively switched off, leaving an effective Minkowski quantum field theory up to much higher energies of the order of $E_L$. This scenario may have important consequences for gravitational collapse, inasmuch as it opens up new possibilities for the final state of stellar collapse other than an evaporating black hole.

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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