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arXiv 1206.0468hep-th
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de Sitter空间中的跃迁振幅

Transition Amplitudes in de Sitter Space

Matthew Dodelson

摘要:

马尔达西纳已经证明,德西特空间中宇宙的波函数可以看作是共形场论的配分函数。在本文中,我们将进一步详细研究这种方法的dS/CFT对应。我们强调,大量的块场是对偶的两个主要的运营商的边界上,这编码的信息,两个独立的行为的块期望值在后期的时间。给出了该对偶性的算符表述,并指出由此产生的边界激发子可以解释为从Bunch-Davies真空到无限将来的激发态的跃迁振幅.我们还解释了如何这些散射振幅可以用来计算晚时间束戴维斯期望值,并评论在双CFT异常的影响,这样的期望值。

英文摘要:

Maldacena has shown that the wavefunction of the universe in de Sitter space can be viewed as the partition function of a conformal field theory. In this paper, we investigate this approach to the dS/CFT correspondence in further detail. We emphasize that massive bulk fields are dual to two primary operators on the boundary, which encode information about the two independent behaviors of bulk expectation values at late times. An operator statement of the duality is given, and it is shown that the resulting boundary correlators can be interpreted as transition amplitudes from the Bunch-Davies vacuum to an excited state in the infinite future. We also explain how these scattering amplitudes can be used to compute late-time Bunch-Davies expectation values, and comment on the effects of anomalies in the dual CFT on such expectation values.

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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