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arXiv 1302.0568hep-thgr-qc
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负势暴胀与符号反转对称性

Inflation with negative potentials and the signature reversal symmetry

Audrey T. Mithani, Alex Vilenkin

摘要:

我们讨论了最近的论文哈特尔,霍金和Hertog,提出量子宇宙学可以预测膨胀的宇宙模型与负标量势。在这里,我们表明,这是一个潜在的对称性,这是在经典和量子理论表现的结果。此外,我们表明,在这样的模型中,膨胀的解决方案一般发展快子和鬼不稳定性,因此在现实的理论是非物理的。

英文摘要:

We discuss recent papers by Hartle, Hawking and Hertog, which proposed that quantum cosmology could predict an inflating universe in models with negative scalar potentials. Here we show that this is a result of an underlying symmetry which is manifest in both classical and quantum theory. Moreover, we show that inflating solutions in such models generally develop tachyonic and ghost instabilities and are therefore unphysical in realistic theories.

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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