Electromagnetic perturbations in Schwarzschild spacetime reduce to a Helmholtz equation with a derived position- and frequency-dependent refractive index encoding gravitational redshift, curvature, and angular momentum.
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2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
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gr-qc 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
EHT angular diameter data yield upper bounds on the holonomy correction b (e.g., b ≤ 0.1319M at a=0 for M87*) showing nonzero b remains consistent with observations for RHCBH spacetimes.
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Electromagnetic wave propagation in static black hole spacetimes: an effective refractive index description in Schwarzschild geometry
Electromagnetic perturbations in Schwarzschild spacetime reduce to a Helmholtz equation with a derived position- and frequency-dependent refractive index encoding gravitational redshift, curvature, and angular momentum.
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Testing loop quantum gravity through EHT observations of M87* and Sgr A* using rotating holonomy-corrected black holes
EHT angular diameter data yield upper bounds on the holonomy correction b (e.g., b ≤ 0.1319M at a=0 for M87*) showing nonzero b remains consistent with observations for RHCBH spacetimes.