Imprints of quantum gravity in the cosmic microwave background

Calmet, Xavier, Edholm, James and Kuntz, Iberê (2019) Imprints of quantum gravity in the cosmic microwave background. European Physical Journal C: Particles and Fields, 79 (238). pp. 1-5. ISSN 1434-6044

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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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Theoretical Particle Physics Research Group
Subjects: Q Science
Q Science > QC Physics
Depositing User: Alice Jackson
Date Deposited: 06 Mar 2019 09:00
Last Modified: 20 Mar 2019 13:13

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Project NameSussex Project NumberFunderFunder Ref
South-Eastern Particle Theory Alliance Sussex - RHUL - UCL 2017-2020 - Sussex nodeG2074STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/P000819/1