Journal article 920 views
“Faster than light” photons and charged black holes
R.D. Daniels,
Graham Shore
Nuclear Physics B, Volume: "B425", Issue: 3, Pages: 634 - 650
Swansea University Author: Graham Shore
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DOI (Published version): 10.1016/0550-3213(94)90291-7
Abstract
Photons propagating in curved spacetime may, depending on their direction and polarisation, have velocities exceeding the ``speed of light'' c. This phenomenon arises through vacuum polarisation in QED and is a tidal gravitational effect depending on the local curvature. It implies that th...
| Published in: | Nuclear Physics B |
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| ISSN: | 05503213 |
| Published: |
1993
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa31912 |
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| Abstract: |
Photons propagating in curved spacetime may, depending on their direction and polarisation, have velocities exceeding the ``speed of light'' c. This phenomenon arises through vacuum polarisation in QED and is a tidal gravitational effect depending on the local curvature. It implies that the Principle of Equivalence does not hold for interacting quantum field theories in curved spacetime and reflects a quantum violation of local Lorentz invariance. These results are illustrated for the propagation of photons in the Reissner-Nordstr\"om spacetime characterising a charged black hole. A general analysis of electromagnetic as well as gravitational birefringence is |
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| College: |
Faculty of Science and Engineering |
| Issue: |
3 |
| Start Page: |
634 |
| End Page: |
650 |