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Imprints of quantum gravity in the cosmic microwave background

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journal contribution
posted on 2023-06-12, 09:02 authored by Xavier CalmetXavier Calmet, James Edholm, Iberê Kuntz
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.

Funding

South-Eastern Particle Theory Alliance Sussex - RHUL - UCL 2017-2020 - Sussex node; G2074; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/P000819/1

History

Publication status

  • Published

File Version

  • Published version

Journal

European Physical Journal C: Particles and Fields

ISSN

1434-6044

Publisher

Springer Verlag

External DOI

Issue

238

Volume

79

Page range

1-5

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Theoretical Particle Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2019-03-06

First Open Access (FOA) Date

2019-03-20

First Compliant Deposit (FCD) Date

2019-03-05

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    Licence

    CC BY 4.0

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