Journal
PHYSICAL REVIEW LETTERS
Volume 114, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.061301
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Funding
- Agence Nationale de la Recherche (ANR) [ANR 12 BS05 003 01]
- Centre National de la Recherche Scientifique (CNRS)
- Projets Internationaux de Collaboration Scientifique (PICS) [6076, 6430]
- U.S. National Science Foundation [PHY-1205986]
- Lundbeck Foundation [R82-2011-7189] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1205986] Funding Source: National Science Foundation
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We consider the scattering of lightlike matter in the presence of a heavy scalar object (such as the Sun or a Schwarzschild black hole). By treating general relativity as an effective field theory we directly compute the nonanalytic components of the one-loop gravitational amplitude for the scattering of massless scalars or photons from an external massive scalar field. These results allow a semiclassical computation of the bending angle for light rays grazing the Sun, including long-range (h) over bar contributions. We discuss implications of this computation, in particular, the violation of some classical formulations of the equivalence principle.
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