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arXiv 0811.1086astro-ph
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平移不变性与宇宙微波背景的各向异性

Translational Invariance and the Anisotropy of the Cosmic Microwave Background

Sean M. Carroll, Chien-Yao Tseng, Mark B. Wise

摘要:

暴胀产生的原初量子涨落通常被认为是统计均匀的,这是平移不变性的结果。在本文中,我们量化了潜在的可观察到的影响,一个小的违反平移不变性在通货膨胀,其特点是存在一个首选的点,线,或平面。我们探讨的印记,这样的违反会留下的宇宙微波背景各向异性,并提供明确的公式预期的振幅$<a_{lm}a_{l'm'}^*>$的球谐系数。

英文摘要:

Primordial quantum fluctuations produced by inflation are conventionally assumed to be statistically homogeneous, a consequence of translational invariance. In this paper we quantify the potentially observable effects of a small violation of translational invariance during inflation, as characterized by the presence of a preferred point, line, or plane. We explore the imprint such a violation would leave on the cosmic microwave background anisotropy, and provide explicit formulas for the expected amplitudes $<a_{lm}a_{l'm'}^*>$ of the spherical-harmonic coefficients.

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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