Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Messenger photon in electromagnetism intractions

  1. Apr 24, 2010 #1
    What's the difference between "repulsion force carrier and
    attraction force Carrier" in electromagnetism interactions?
    We know that these two messenger photons should be
    distinguished. But in what features and details?
  2. jcsd
  3. Apr 24, 2010 #2


    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi mohsen1989! Welcome to PF! :smile:
    Code (Text):
    I've never heard of these terms. :confused:

    So far as I know there's no distinction.

    Can you provide a quote and a link to where you saw this? :smile:
  4. Apr 24, 2010 #3
    my apologize,i have ever seen that anywhere to provide a quote. but i meant how two specific charges know when interact by attraction force or repulsion force?
  5. Apr 24, 2010 #4


    User Avatar
    Science Advisor
    Homework Helper

    (One charge doesn't "know" that the other charge is there, it only "knows" that it is in an electric field, but anyway …)

    The field works the same way whether the charge is positive or negative.

    "Messenger" photons (and electrons), usually called "virtual" photons (and electrons), are only a mathematical idea that helps to describe the approximations in perturbation theory in quantum field theory.

    They don't literally "carry" the force. :smile:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook