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arXiv 2011.01450physics.hist-phgr-qc
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具有暗物质的经典宇宙学中的不确定性

Indeterminacy in classical cosmology with dark matter

Viqar Husain, Vladimir Tasic

摘要:

我们描述了一类暗能量流体的均匀和各向同性宇宙学的广义相对论中的不确定性的情况。宇宙学由状态变量方程参数化,其中一个例子给出了与诺顿的机械圆顶相同的解决方案。我们的例子超越了以前研究过的例子,因为不确定性存在于时空本身的演化中:大爆炸的开始是不确定的。我们进一步表明,解决的不确定性,如果动态被视为关系。

英文摘要:

We describe a case of indeterminacy in general relativity for homogeneous and isotropic cosmologies for a class of dark energy fluids. The cosmologies are parametrized by an equation of state variable, with one instance giving the same solution as Norton's mechanical dome. Our example goes beyond previously studied cases in that indeterminacy lies in the evolution of spacetime itself: the onset of the Big Bang is indeterminate. We show further that the indeterminacy is resolved if the dynamics is viewed relationally.

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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