Gravitational diffraction radiation

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dc.creatorCardoso, Vitor
dc.creatorCavaglia, Marco
dc.creatorPimenta, Mario
dc.date2006-09-13
dc.date2006-10-04
dc.date.accessioned2026-07-07T11:43:55Z
dc.date.available2026-07-07T11:43:55Z
dc.descriptionWe show that if the visible universe is a membrane embedded in a higher-dimensional space, particles in uniform motion radiate gravitational waves because of spacetime lumpiness. This phenomenon is analogous to the electromagnetic diffraction radiation of a charge moving near to a metallic grating. In the gravitational case, the role of the metallic grating is played by the inhomogeneities of the extra-dimensional space, such as a hidden brane. We derive a general formula for gravitational diffraction radiation and apply it to a higher-dimensional scenario with flat compact extra dimensions. Gravitational diffraction radiation may carry away a significant portion of the particle's initial energy. This allows to set stringent limits on the scale of brane perturbations. Physical effects of gravitational diffraction radiation are briefly discussed.
dc.description5 pages, 2 figures, RevTeX4. v2: References added. Version to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-th/0609094
dc.identifierhttp://arxiv.org/abs/hep-th/0609094
dc.identifierPhys.Rev.D74:084011,2006
dc.identifierdoi:10.1103/PhysRevD.74.084011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201417
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGravitational diffraction radiation
dc.typetext

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