Decomposition of the linear magnetoelectric tensor into trace, symmetric-traceless, and antisymmetric sectors reveals distinct propagation signatures, with the trace sector silent, the antisymmetric sector factorizing into closed-form speeds, and the symmetric-traceless sector controlling the Fresel
Light propagation in non linear electrodynamics
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abstract
Working on the approximation of low frequency, we present the light cone conditions for a class of theories constructed with the two gauge invariants of the Maxwell field without making use of average over polarization states. Different polarization states are thus identified describing birefringence phenomena. We make an application of the formalism to the case of Euler-Heisenberg effective Lagrangian and well know results are obtained.
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NLED alters photon propagation near magnetars, producing ~10% errors in inferred radii via ray-tracing and a minimal ~350 ns travel-time delay.
Analytic charged black holes in nonlinear electrodynamics with non-monotonic lapse functions support stable light rings and additional longer-lived quasinormal modes compared to Einstein gravity.
Higher-curvature corrections induce polarization-dependent effective metrics for photons that shift photon spheres, alter eikonal quasinormal modes, and modify deflection angles in static spherically symmetric backgrounds.
citing papers explorer
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Propagation-based classification of linear magnetoelectric response in dielectrics
Decomposition of the linear magnetoelectric tensor into trace, symmetric-traceless, and antisymmetric sectors reveals distinct propagation signatures, with the trace sector silent, the antisymmetric sector factorizing into closed-form speeds, and the symmetric-traceless sector controlling the Fresel
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Nonlinear electrodynamics in magnetars: systematic effects on radius constraints and timing analysis
NLED alters photon propagation near magnetars, producing ~10% errors in inferred radii via ray-tracing and a minimal ~350 ns travel-time delay.
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Properties of black holes in non-linear electrodynamics
Analytic charged black holes in nonlinear electrodynamics with non-monotonic lapse functions support stable light rings and additional longer-lived quasinormal modes compared to Einstein gravity.
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Polarization-Dependent Photon Propagation, Quasinormal Modes, and Gravitational Lensing in Higher-Curvature Effective Theories
Higher-curvature corrections induce polarization-dependent effective metrics for photons that shift photon spheres, alter eikonal quasinormal modes, and modify deflection angles in static spherically symmetric backgrounds.