Relativistic single-particle scattering cross sections for strong electromagnetic waves in strongly magnetized plasma are computed for arbitrary polarization and angle, showing strong suppression and sub-unity optical depth for quasi-parallel propagation.
Interaction of Strong Electromagnetic Waves with Unmagnetized Pair Plasmas
3 Pith papers cite this work. Polarity classification is still indexing.
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abstract
We investigate analytically and numerically the interaction of strong electromagnetic waves with unmagnetized pair plasmas. We show that the interaction is governed by a single nonlinearity parameter, $\varepsilon_{\rm p}$, defined as the ratio of the wave strength parameter to the wave frequency in units of the plasma frequency (with both frequencies measured in the plasma rest frame prior to the interaction). When $\varepsilon_{\rm p}<1$, the number of wavelengths that propagate through the plasma without attenuation from induced Compton scattering is approximately $\varepsilon_{\rm p}^{-2/3}$. This attenuation can imprint sub-structures as narrow as a few wavelengths on the pulse profile. When $\varepsilon_{\rm p}>1$, the electromagnetic pulse acts as a relativistic piston and drives a shock into the plasma. Our results establish a framework for the interaction of strong electromagnetic waves with pair plasmas, a process relevant for intense radio pulses from neutron stars and for next-generation pair plasma experiments at multi-petawatt laser facilities.
fields
astro-ph.HE 3years
2026 3verdicts
UNVERDICTED 3representative citing papers
Faraday conversion in magnetar winds explains the range of observed FRB circular polarization and yields constraints on near-source wind parameters from Stokes data.
Induced scattering of strong waves in pair plasmas saturates at a level set by the wave-to-plasma energy ratio, so waves with a0 ω0/ωpe ≫ 1 propagate with little scattering even when the amplitude a0 exceeds 1.
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Scattering of Strong Radio Waves by Particles in Strongly Magnetized Plasmas and Implications for Fast Radio Bursts
Relativistic single-particle scattering cross sections for strong electromagnetic waves in strongly magnetized plasma are computed for arbitrary polarization and angle, showing strong suppression and sub-unity optical depth for quasi-parallel propagation.
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Constraining the near-source relativistic wind medium using Fast Radio Burst circular polarization data
Faraday conversion in magnetar winds explains the range of observed FRB circular polarization and yields constraints on near-source wind parameters from Stokes data.
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Induced Scattering of Strong Waves in Pair Plasmas
Induced scattering of strong waves in pair plasmas saturates at a level set by the wave-to-plasma energy ratio, so waves with a0 ω0/ωpe ≫ 1 propagate with little scattering even when the amplitude a0 exceeds 1.