| Classical gravity does not refract negatively. | |
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MedLine Citation:
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PMID: 17359145 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We appraise recent claims that classical gravitation can induce negative refraction of electromagnetic radiation in vacuum. By recasting the previous literature in covariant notation, we show that the criterion used hitherto for determining negative refraction in vacuum is inappropriate, and can even be satisfied by parametrized transformations in Minkowski spacetime. Using instead a covariantly acceptable definition, we find that in classical vacuum the power flux of a plane electromagnetic wave points in the direction of phase advance. |
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Authors:
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Martin W McCall |
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Publication Detail:
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Type: Journal Article Date: 2007-03-02 |
Journal Detail:
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Title: Physical review letters Volume: 98 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2007 Mar |
Date Detail:
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Created Date: 2007-03-15 Completed Date: 2007-07-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 091102 Citation Subset: - |
Affiliation:
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Department of Physics, The Blackett Laboratory Imperial College of Science, Technology and Medicine, Prince Consort Road, London SW7 2AZ, United Kingdom. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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