Using the time delay and flux ratio of the lensed FRB candidate FRB 20190308C, the authors derive an upper bound on the photon mass of 5.3e-42 kg for a lens shear of 0.01, and between 2.4e-42 and 2.1e-41 kg over the allowed shear range.
Photon: history, mass, charge
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
The talk consists of three parts. ``History'' briefly describes the emergence and evolution of the concept of photon during the first two decades of the 20th century. ``Mass'' gives a short review of the literature on the upper limit of the photon's mass. ``Charge'' is a critical discussion of the existing interpretation of searches for photon charge. Schemes, in which all photons are charged, are grossly inconsistent. A model with three kinds of photons (positive, negative and neutral) seems at first sight to be more consistent, but turns out to have its own serious problems.
citation-role summary
background 1
citation-polarity summary
fields
astro-ph.HE 1years
2024 1verdicts
CONDITIONAL 1roles
background 1polarities
unclear 1representative citing papers
citing papers explorer
-
Bounding the photon mass with gravitationally lensed fast radio bursts
Using the time delay and flux ratio of the lensed FRB candidate FRB 20190308C, the authors derive an upper bound on the photon mass of 5.3e-42 kg for a lens shear of 0.01, and between 2.4e-42 and 2.1e-41 kg over the allowed shear range.