Physics – Plasma Physics
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...232..215z&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 232, no. 1, June 1990, p. 215-224.
Physics
Plasma Physics
2
Interplanetary Medium, Photons, Plasma Physics, Solar Corona, Solar Radio Bursts, Brightness Temperature, Coordinate Transformations, Electromagnetic Radiation, Ergodic Process, Fine Structure, Fractals, Refractivity
Scientific paper
The correlate propagation of two nearby photons in phase space is studied for the first time. A general diffusion equation for a two-photon probability density is derived. The effects of large scale, average refraction are included, and it is shown that the exponential separation of the ray paths occurs in a medium with fluctuating refractive index, giving rise to chaotic behavior and to fractal structures. The results are applied to photon propagation through the solar corona and to the question of the decrease in the brightness temperature of the apparent source of solar radio bursts.
Mangeney Andre
Veltri Pierluigi
Zimbardo Gaetano
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