Observational limits on quantum geometry effects
Open accessAbstract
Using a form of modified dispersion relations derived in the context of quantum geometry, we investigate limits set by current observations on potential corrections to Lorentz invariance. We use a phenomological model in which there are separate parameters for photons, leptons and hadrons. Constraints on these parameters are derived using thresholds for the processes of photon stability, photon absorption, vacuum Cerenkov radiation, pion stability and the GZK cutoff. Although the allowed region in parameter space is tightly constrained, non-vanishing corrections to Lorentz symmetry due to quantum geometry are consistent with current astrophysical observations.
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The level of constraints from threshold reactions at 50 TeV is around 10−2.
“The level of constraints from threshold reactions at 50 TeV is around 10−2 [152, 167].”
From Modern Tests of Lorentz Invariance (2005) · cites this paper as [167]
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- Authors
- Konopka, T. J., & Major, S. A.
- Affiliations
- Hamilton College (US)
- Venue
- New Journal of Physics
- Publisher
- IOP Publishing
- Published
- 2002-08-02
- Volume
- 4
- Pages
- 57-57
- ISSN
- 1367-2630 (ISSN-L)
- OpenAlex
- W2076790486
- Cited by
- 112
- References
- 54
- Citations by year
- 2026: 1 · 2025: 3 · 2022: 3 · 2021: 3 · 2020: 1 · 2019: 1 · 2017: 1 · 2016: 2 · 2014: 5 · 2013: 3 · 2012: 3
- FWCI
- 12.23
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by
- Locations
- New Journal of Physics (publishedVersion, cc-by)
- arXiv (Cornell University) (publishedVersion)
- CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Institut Périmètre de physique théorique
- Topics
- Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Noncommutative and Quantum Gravity Theories
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Black Holes and Theoretical Physics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Relativity and Gravitational Theory
- Keywords
- quantum geometry, modified dispersion relations, Lorentz violation, observational constraints, photon absorption, GZK cutoff, phenomenological model, high-energy astrophysics
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