Photon acceleration in vacuum |
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| Institution: | 1. CFP and CFIF, Instituto Superior Técnico, P-1049-001 Lisboa, Portugal;2. Nonlinear Physics Centre, Department of Physics, Umeå University, SE-90187 Umeå, Sweden;3. Institut für Theoretische Physik IV and Centre for Plasma Science and Astrophysics, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany |
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| Abstract: | A new process associated with the nonlinear optical properties of the electromagnetic vacuum, as predicted by quantum electrodynamics, is described. This can be called photon acceleration in vacuum, and corresponds to the frequency shift that takes place when a given test photon interacts with an intense beam of background radiation. |
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