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Using a black hole to weigh light: can the Event Horizon Telescope yield\n new information about the photon rest mass?

2019/02/06 by Robert P. Cameron, Cameron, Robert P.
Medicine · Physics and Astronomy · #Biofield Effects and Biophysics #Experimental and Theoretical Physics Studies #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Relativity and Gravitational Theory

paper · pdf · doi:10.48550/arxiv.1902.02209

openalex publication_date 2019/02/06 · openalex created_date 2022/07/29 · openalex updated_date 2026/07/28

Abstract

We point out that data collected by the Event Horizon Telescope or a similar\nproject might yield new information about the photon rest mass m_\γ, in\nthe form of evidence that m_\γ\≠ 0 together with a lower bound on\nm_\γ or a new upper bound on m_\γ. Using Sgr A*, there is scope to\nimprove on the best upper bound obtained via laboratory tests of Coulomb's law\nby up to nineteen orders of magnitude.\n

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