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Could light have mass?

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  1. Sep 27, 2015 #1
    I was searching about the light and I found an article tha says that the light could have some kind of mass. This research was made at Harvard-MIT Center for Ultracold Atoms by Harvard Professor of Physics Mikhail Lukin and MIT Professor of Physics Vladan Vuletic and I don't know
     
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  3. Sep 27, 2015 #2

    pabilbado

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    I don't know what you really mean, if you are talking about momentun certainly light has momentun.
     
  4. Sep 27, 2015 #3

    jtbell

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    Can you give us a link to the article?
     
  5. Sep 27, 2015 #4
    Wiki says "Photons inside superconductors do develop a nonzero effective rest mass; as a result, electromagnetic forces become short-range inside superconductors."
     
  6. Sep 27, 2015 #5

    anorlunda

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    I Googled the phrase and I found http://phys.org/news/2013-09-scientists-never-before-seen.html#jCp

    The summary does not use the word mass, but it says :

    Working with colleagues at the Harvard-MIT Center for Ultracold Atoms, a group led by Harvard Professor of Physics Mikhail Lukin and MIT Professor of Physics Vladan Vuletic have managed to coax photons into binding together to form molecules – a state of matter that, until recently, had been purely theoretical. The work is described in a September 25 paper in Nature.
     
  7. Sep 27, 2015 #6
    Light does not have intrinsic or rest mass. It has an equivalent mass due to its energy.
     
  8. Sep 28, 2015 #7

    DrDu

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    Light in vacuo does not have mass. However, photon-like quasi-particles in matter can well have a non-zero effective mass.
     
  9. Sep 28, 2015 #8
  10. Sep 28, 2015 #9

    Nugatory

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    Last edited by a moderator: May 7, 2017
  11. Sep 28, 2015 #10
    Ok, thnak you very much
     
    Last edited by a moderator: May 7, 2017
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