Journal article
Possible astrophysical probes of quantum gravity
- Abstract:
- A satisfactory theory of quantum gravity will very likely require modification of our classical perception of space-time, perhaps by giving it a 'foamy' structure at scales of order the Planck length. This is expected to modify the propagation of photons and other relativistic particles such as neutrinos, such that they will experience a non-trivial refractive index even in vacuo. The implied spontaneous violation of Lorentz invariance may also result in alterations of kinematical thresholds for key astrophysical processes involving high energy cosmic radiation. We discuss experimental probes of these possible manifestations of the fundamental quantum nature of space-time using observations of distant astrophysical sources such as gamma-ray bursts and active galactic nuclei.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 242.8KB, Terms of use)
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- Publisher copy:
- 10.1142/S0217732302007521
Authors
+ Particle Physics and Astronomy Research Council
More from this funder
- Funding agency for:
- Sarkar, S
- Publisher:
- World Scientific
- Journal:
- Modern Physics Letters A More from this journal
- Volume:
- 17
- Issue:
- 15n17
- Pages:
- 1025-1036
- Publication date:
- 2002-01-01
- DOI:
- EISSN:
-
1793-6632
- ISSN:
-
0217-7323
Terms of use
- Copyright holder:
- World Scientific Publishing Company
- Copyright date:
- 2002
- Notes:
- Copyright © 2002 World Scientific Publishing Company. This is the accepted manuscript version of the article. The final version is available online from World Scientific at: http://dx.doi.org/10.1142/S0217732302007521
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