Natural Covariant Planck Scale Cutoffs and the Cosmic Microwave Background Spectrum
Abstract
We calculate here the impact of quantum gravity–motivated ultraviolet cutoffs on inflationary predictions for the cosmic microwave background spectrum. We model the ultraviolet cutoffs fully covariantly to avoid possible artifacts of covariance breaking. Imposing these covariant cutoffs results in the production of small, characteristically k-dependent oscillations in the spectrum. The size of the effect scales linearly with the ratio of the Planck to Hubble lengths during inflation. As a result, the relative size of the effect could be as large as one part in 105; i.e., eventual observability may not be ruled out.
- Authors:
-
- California Inst. of Technology (CalTech), Pasadena, CA (United States). Walter Burke Inst. for Theoretical Physics
- Univ. of Waterloo, ON (Canada)
- Univ. of Cape Town (South Africa)
- Publication Date:
- Research Org.:
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); Gordon and Betty Moore Foundation; Natural Sciences and Engineering Research Council of Canada (NSERC); National Research Foundation (NRF) of South Africa
- OSTI Identifier:
- 1599359
- Alternate Identifier(s):
- OSTI ID: 1371806
- Grant/Contract Number:
- SC0011632
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 119; Journal Issue: 3; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Chatwin-Davies, Aidan, Kempf, Achim, and Martin, Robert T. W. Natural Covariant Planck Scale Cutoffs and the Cosmic Microwave Background Spectrum. United States: N. p., 2017.
Web. doi:10.1103/PhysRevLett.119.031301.
Chatwin-Davies, Aidan, Kempf, Achim, & Martin, Robert T. W. Natural Covariant Planck Scale Cutoffs and the Cosmic Microwave Background Spectrum. United States. https://doi.org/10.1103/PhysRevLett.119.031301
Chatwin-Davies, Aidan, Kempf, Achim, and Martin, Robert T. W. Tue .
"Natural Covariant Planck Scale Cutoffs and the Cosmic Microwave Background Spectrum". United States. https://doi.org/10.1103/PhysRevLett.119.031301. https://www.osti.gov/servlets/purl/1599359.
@article{osti_1599359,
title = {Natural Covariant Planck Scale Cutoffs and the Cosmic Microwave Background Spectrum},
author = {Chatwin-Davies, Aidan and Kempf, Achim and Martin, Robert T. W.},
abstractNote = {We calculate here the impact of quantum gravity–motivated ultraviolet cutoffs on inflationary predictions for the cosmic microwave background spectrum. We model the ultraviolet cutoffs fully covariantly to avoid possible artifacts of covariance breaking. Imposing these covariant cutoffs results in the production of small, characteristically k-dependent oscillations in the spectrum. The size of the effect scales linearly with the ratio of the Planck to Hubble lengths during inflation. As a result, the relative size of the effect could be as large as one part in 105; i.e., eventual observability may not be ruled out.},
doi = {10.1103/PhysRevLett.119.031301},
journal = {Physical Review Letters},
number = 3,
volume = 119,
place = {United States},
year = {Tue Jul 18 00:00:00 EDT 2017},
month = {Tue Jul 18 00:00:00 EDT 2017}
}
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Works referencing / citing this record:
Quantum Gravity, Information Theory and the CMB
journal, April 2018
- Kempf, Achim
- Foundations of Physics, Vol. 48, Issue 10
Quantum mechanical treatment of two-level atoms coupled to continuum with an ultraviolet cutoff
journal, July 2018
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