Journal article 1008 views
The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes
Timothy J Hollowood,
Graham Shore
Int. J. Mod. Phys. D, Volume: 21, Pages: 1241003 - 1241010
Swansea University Author: Graham Shore
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DOI (Published version): 10.1142/S0218271812410039
Abstract
Gravitational tidal forces acting on the virtual e+ e- cloud surrounding a photon endow spacetime with a non-trivial refractive index. This has remarkable properties unique to gravitational theories including superluminal low-frequency propagation, in apparent violation of causality, and amplificati...
Published in: | Int. J. Mod. Phys. D |
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World Scientific
2012
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URI: | https://cronfa.swan.ac.uk/Record/cronfa7968 |
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2014-03-20T21:53:12.0995926 v2 7968 2012-02-22 The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes 28a24f55687c82d6f3ee378ead3cf234 Graham Shore Graham Shore true false 2012-02-22 FGSEN Gravitational tidal forces acting on the virtual e+ e- cloud surrounding a photon endow spacetime with a non-trivial refractive index. This has remarkable properties unique to gravitational theories including superluminal low-frequency propagation, in apparent violation of causality, and amplification of the renormalized photon field, in apparent violation of unitarity. Using the geometry of null congruences and the Penrose limit, we illustrate these phenomena and their resolution by tracing the history of a photon as it falls into the near-singularity region of a black hole. Journal Article Int. J. Mod. Phys. D 21 1241003 1241010 World Scientific 30 6 2012 2012-06-30 10.1142/S0218271812410039 Awarded 3rd Prize in the Gravity Research Foundation 2012 Awards for Essays on Gravitation. COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2014-03-20T21:53:12.0995926 2012-02-22T13:37:03.0000000 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Timothy J Hollowood 1 Graham Shore 2 |
title |
The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes |
spellingShingle |
The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes Graham Shore |
title_short |
The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes |
title_full |
The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes |
title_fullStr |
The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes |
title_full_unstemmed |
The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes |
title_sort |
The Unbearable Beingness of Light - dressing and undressing photons in black hole spacetimes |
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28a24f55687c82d6f3ee378ead3cf234 |
author_id_fullname_str_mv |
28a24f55687c82d6f3ee378ead3cf234_***_Graham Shore |
author |
Graham Shore |
author2 |
Timothy J Hollowood Graham Shore |
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Journal article |
container_title |
Int. J. Mod. Phys. D |
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21 |
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1241003 |
publishDate |
2012 |
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Swansea University |
doi_str_mv |
10.1142/S0218271812410039 |
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World Scientific |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
department_str |
School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics |
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description |
Gravitational tidal forces acting on the virtual e+ e- cloud surrounding a photon endow spacetime with a non-trivial refractive index. This has remarkable properties unique to gravitational theories including superluminal low-frequency propagation, in apparent violation of causality, and amplification of the renormalized photon field, in apparent violation of unitarity. Using the geometry of null congruences and the Penrose limit, we illustrate these phenomena and their resolution by tracing the history of a photon as it falls into the near-singularity region of a black hole. |
published_date |
2012-06-30T03:09:59Z |
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1763749920282509312 |
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11.016235 |