DRACO Posted May 26, 2020 Report Share Posted May 26, 2020 Do photons, phonons and electrons have mass? Quote Link to comment Share on other sites More sharing options...
exchemist Posted May 26, 2020 Report Share Posted May 26, 2020 Do photons, phonons and electrons have mass?No, no and yes, respectively. (I refer to rest mass, which is what is always meant when speaking of mass nowadays in physics, unless specified to the contrary). Quote Link to comment Share on other sites More sharing options...
GAHD Posted May 26, 2020 Report Share Posted May 26, 2020 Do photons, phonons and electrons have mass?like ex pointed out.. No, no and yes, respectively. (I refer to rest mass, which is what is always meant when speaking of mass nowadays in physics, unless specified to the contrary). There's some exceptions when you start talking about superconductive states; on paper photons can be considered to act like they are massive inside the superconductor. You'd need to go into Gauge theories to get to the "this might be why" on that change in behavior. https://doi.org/10.1063/1.4995642http://photonics101.com/blog/2012/photon-mass-superconductors-magnetic-field Quote Link to comment Share on other sites More sharing options...
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