GUP与聚合物量子宇宙学:Taub模型
GUP vs polymer quantum cosmology: the Taub model
摘要:
在这两个框架内讨论了Taub模型中宇宙奇点的命运。内部时间变量被排除,宇宙唯一剩下的自由度(各向异性)根据这样的方案被量子化。由此产生的GUP Taub宇宙是无奇点的,不同于第二种情况,在第二种情况下,经典奇点不被聚合物环量子效应驯服。
英文摘要:
The fate of the cosmological singularity in the Taub model is discussed within the two frameworks. An internal time variable is ruled out and the only remaining degree of freedom (the anisotropy) of the Universe is quantized according to such schemes. The resulting GUP Taub Universe is singularity-free, differently from the second case, where the classical singularity is not tamed by the polymer-loop quantum effects.
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