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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...

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Published in: Int. J. Mod. Phys. D
Published: World Scientific 2012
URI: https://cronfa.swan.ac.uk/Record/cronfa7968
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spelling 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
author_id_str_mv 28a24f55687c82d6f3ee378ead3cf234
author_id_fullname_str_mv 28a24f55687c82d6f3ee378ead3cf234_***_Graham Shore
author Graham Shore
author2 Timothy J Hollowood
Graham Shore
format Journal article
container_title Int. J. Mod. Phys. D
container_volume 21
container_start_page 1241003
publishDate 2012
institution Swansea University
doi_str_mv 10.1142/S0218271812410039
publisher World Scientific
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title 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
document_store_str 0
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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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score 11.013148

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