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Using cosmology to establish the quantization of gravity
Open accessAbstract
While many aspects of general relativity have been tested, and general principles of quantum dynamics demand its quantization, there is no direct evidence for that. It has been argued that development of detectors sensitive to individual gravitons is unlikely, and perhaps impossible. We argue here, however, that measurement of polarization of the cosmic microwave background due to a long wavelength stochastic background of gravitational waves from inflation in the early Universe would firmly establish the quantization of gravity.
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Cited by
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On a quantum Weyl curvature hypothesis
Kiefer, C. (2022) · AVS Quantum Science · doi:10.1116/5.0076811 · Cited by 12
“With this initial condition, the solution of the Schrödinger equations for the modes are Gaussians of the form (13) with an η-dependent factor Ω (0) k (η).”
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Metadata
- Authors
- Krauss, L. M., & Wilczek, F.
- Affiliations
- Australian National University (AU)
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2014-02-20
- Volume
- 89
- Issue
- 4
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2146178416
- Cited by
- 88
- References
- 0
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 7 · 2023: 1 · 2022: 4 · 2021: 5 · 2020: 7 · 2019: 3 · 2018: 2 · 2017: 8 · 2016: 9 · 2015: 11 · 2014: 23
- FWCI
- 11.19
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
- ANU Open Research (Australian National University) (submittedVersion)
- arXiv (Cornell University)
- Physical Review Letters
- Funders
- U.S. Department of Energy (DE-FG02-05ER41360)
- Topics
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Noncommutative and Quantum Gravity Theories
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Relativity and Gravitational Theory
- Keywords
- quantum gravity, CMB polarization, gravitational waves, stochastic gravitational wave background, cosmic inflation, early universe, graviton
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