Subluminal Cosmology
نویسندگان
چکیده
منابع مشابه
Coherent Phonon-Polaritons and Subluminal Čerenkov Radiation
Impulsive stimulated Raman scattering can be used to generate a wide range of coherent low-lying excitations [1] and, in particular, phonon-polaritons which are hybrid modes resulting from the coupling of infrared-active transverse optical phonons to infrared photons. In most cases reported in the literature, phase matching is achieved by using the so-called traveling grating geometry involving...
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Diffusive shock acceleration is invoked to explain non-thermal particle acceleration in Supernova Remnants, Active Galactic Nuclei (AGN) Jets, Gamma ray Bursts (GRBs) and various large scale cosmic structures. The importance of achieving the highest observed particle energies by such a mechanism in a given astrophysical situation is a recurring theme. In this work, shock acceleration in relativ...
متن کاملTunable Subluminal Propagation of Narrow-band X-Ray Pulses.
Group velocity control is demonstrated for x-ray photons of 14.4 keV energy via a direct measurement of the temporal delay imposed on spectrally narrow x-ray pulses. Subluminal light propagation is achieved by inducing a steep positive linear dispersion in the optical response of 57Fe Mössbauer nuclei embedded in a thin film planar x-ray cavity. The direct detection of the temporal pulse delay ...
متن کاملModeling and analysis of an ultra-stable subluminal laser
We describe a subluminal laser which is extremely stable against perturbations. It makes use of a composite gain spectrum consisting of a broad background along with a narrow peak. The stability of the laser, defined as the change in frequency as a function of a change in the cavity length, is enhanced by a factor given by the group index, which can be as high as 10 for experimentally realizabl...
متن کاملSubluminal and Superluminal Electromagnetic Waves and the Lepton Mass Spectrum
Maxwell equation ∂F = 0 for F ∈ sec ∧2 M ⊂ sec Cl(M), where Cl(M) is the Clifford bundle of differential forms, have subluminal and superluminal solutions characterized by F 2 6= 0. We can write F = ψγ21ψ̃ where ψ ∈ sec Cl(M). We can show that ψ satisfies a non linear DiracHestenes Equation (NLDHE). Under reasonable assumptions we can reduce the NLDHE to the linear Dirac-Hestenes Equation (DHE)....
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ژورنال
عنوان ژورنال: Journal of Modern Physics
سال: 2017
ISSN: 2153-1196,2153-120X
DOI: 10.4236/jmp.2017.84039