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Thread: Absorption of a photon

  1. #1 Absorption of a photon 
    Junior Member
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    Oct 2017
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    Does anybody can explain how the electron is able to emit and absorb the same (virtual) photon?
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  2. #2  
    Senior Member Strange's Avatar
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    It absorbs a photon because the electron is raised to a higher energy state by the energy from the photon.

    When the electron falls back to its default state, the energy will be released as a photon (with the same energy as the original photon).
    You can do everything right, strictly according to procedure, on the ocean and it'll still kill you, but if you're a good navigator at least you'll know where you were when you died.
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  3. #3  
    Junior Member
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    Well it is of course quantum mechanical. The virtual photon only exists for a short period of time given by the uncertainty principle. While it exists, it is initially in the neighborhood of the electron that emitted it, and it has a chance to interact with that electron before it departs.
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