Adiabatic Faraday effect in a two-level Hamiltonian formalism

作者:Dasgupta Basudeb*; Raffelt Georg G
来源:Physical Review D - Particles, Fields, Gravitation and Cosmology, 2010, 82(12): 123003.
DOI:10.1103/PhysRevD.82.123003

摘要

The helicity of a photon traversing a magnetized plasma can flip when the B field along the trajectory slowly reverses. Broderick and Blandford have recently shown that this intriguing effect can profoundly change the usual Faraday effect for radio waves. We study this phenomenon in a formalism analogous to neutrino flavor oscillations: the evolution is governed by a Schrodinger equation for a two-level system consisting of the two photon helicities. Our treatment allows for a transparent physical understanding of this system and its dynamics. In particular, it allows us to investigate the nature of transitions at intermediate adiabaticities.

  • 出版日期2010-12-7