Photon Polarisation Decoherence and Birefringence over Gamma-Ray Burst Distances: Computed Limits
Year: 2026
Type: article
Abstract: This paper computes the polarisation phase retardation accumulated by gamma-ray photons over gigaparsec distances under a quadratic Lorentz-violating birefringence model. The retardation is 6.404e+21 radians at one gigaelectronvolt, 6.404e+25 radians at one hundred gigaelectronvolts, and 6.404e+31 radians at one hundred teraelectronvolts, for unit strength over one gigaparsec. Observed polarisation at the highest energies therefore restricts the strength parameter severely, while low-energy polarisation carries almost no information in the quadratic model. The density ceiling plays no role in propagation through near-vacuum; the constraint is purely kinematic. The study is simulated and computed from stated assumptions; it is not a measurement.
Author: Aldred, William Alexander
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7225826215
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