Imprints of quantum gravity in the cosmic microwave background

被引：0
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作者：
Xavier Calmet
James Edholm
Iberê Kuntz
机构：
[1] University of Sussex,Department of Physics and Astronomy
[2] Lancaster University,undefined
来源：
The European Physical Journal C | 2019年 / 79卷
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摘要：
It has been shown that the spectrum of quantum gravity contains at least two new modes in addition to the massless graviton: a massive spin-0 and a massive spin-2. We calculate their power spectrum during inflation and we argue that they could leave an imprint in the cosmic microwave background should their masses be below the inflationary scale.
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