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arXiv 0710.2029hep-th
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无边界提案中的体积加权

Volume Weighting in the No Boundary Proposal

S. W. Hawking

摘要:

有人认为,无边界假设将预测很少或没有慢滚暴胀导致一个空的deSitter宇宙。然而,有人认为整个宇宙的概率应该乘以零模因子$e^{3N}$,该因子计算宇宙中哈勃体积的数量。这种体积权重类似于永恒暴胀中的体积权重,但以规范不变的方式导出。它预言暴胀开始于势能的鞍点,宇宙总是处于半经典状态。

英文摘要:

It has been suggested that the no boundary proposal would predict little or no slow roll inflation leading to an empty deSitter universe. However it is argued that the probability for the whole universe should be multiplied by a zero mode factor $e^{3N}$ which counts the number of Hubble volumes in the universe. This volume weighting is similar to that in eternal inflation but derived in a gauge invariant manner. It predicts that inflation began at a saddle point in the potential and that the universe was always in the semi-classical regime.

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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