Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-02-14
Phys.Rev.Lett.98:125001,2007
Astronomy and Astrophysics
Astrophysics
5 pages, 3 figures, to appear in Physical Review Letters
Scientific paper
10.1103/PhysRevLett.98.125001
We present for the first time the nonlinear dynamics of quantum electrodynamic (QED) photon splitting in a strongly magnetized electron-positron (pair) plasma. By using a QED corrected Maxwell equation, we derive a set of equations that exhibit nonlinear couplings between electromagnetic (EM) waves due to nonlinear plasma currents and QED polarization and magnetization effects. Numerical analyses of our coupled nonlinear EM wave equations reveal the possibility of a more efficient decay channel, as well as new features of energy exchange among the three EM modes that are nonlinearly interacting in magnetized pair plasmas. Possible applications of our investigation to astrophysical settings, such as magnetars, are pointed out.
Brodin Gert
Eliasson Baldur
Kant Shukla Padma
Marklund Mattias
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