resonance photons

Discussion in 'Physics & Math' started by jaiii, Feb 23, 2014.

  1. jaiii Registered Senior Member


    What would happen if they met two photons with the same characteristics (frequency and phase)?

    Thank you.

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  3. mathman Valued Senior Member

    Lasers are based on this principle. The number of photons is very much larger than 2.
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  5. jaiii Registered Senior Member

    Thank for answer.

    But I ask whether the abatement vacuum resonance occurs.
    Whether a photon is created and what its characteristics?
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  7. exchemist Valued Senior Member

    Sorry, the English in your post is not good enough for us to understand you. Would you like to try again?
  8. OnlyMe Valued Senior Member

    jaiii, the wave, and particle or photon characteristics of light, are a complicated issue. For your question I don't believe that thinking of light as two photon (particles) meeting represents what is known about light. The photon character of light is something that is observed almost exclusively as the wave form of light interacts with matter. Light interacts with matter in quantifiable bits, which we call photons... But other than when it interacts with matter it, light acts like a wave.

    As light moves through empty space it is more accurate, as far as observation and experience is concerned to think of it as a wave or waves, rather than photons resembling particles of light.

    Waves do not interact with one another, other than in the manner two waves affect an atom. Two waves interacting with the same atom at the same time may add to some affect or cancel the affect of each other, to some degree.

    So the answer, or one answer to what I believe you are asking, is that two photons which meet each other in free space, would interact as waves and have no affect, one on the other. They would simply move essentially through each other, in a similar way as waves on the surface of a lake.
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  10. jaiii Registered Senior Member

    Thank you for your response.

    I mean photons from the Casimir effect in the gap between two metal plates and laser beams as photons.

    And I wonder if the crash occurs resonance?

  11. OnlyMe Valued Senior Member

    Milonni would probably take some exception to the way you phrase that, he was explaning the Casimir effect entirely from the perspective of QED, interpretation of the ZPF. (I think.)

    They way you describe the photons in the Casimir effect sounds like it is moving toward an SED (Stochastic electrodynamics) point of view where the photons become real instead of virtual.

    In either case it would not be the "photons" interactions with one another that causes the effect. It is the "photons" virtual or real interacting with the plates. And in either case based on Milonni's QED explanation, the plates being close together prevent wavelengths larger than the gap from existing between the plates, so there is a greater ZPF potential pushing the plates together than there is pushing them apart... It has always bothered me a little that even though the explanation describes the plates being pushed together, the effect is still called attractive.

    So no I don't see there being any resonance between individual "photons", though one might think of the space between the plates as having a resonant limit that excludes some wavelengths.

    jaiii, if you want to try and read about the explanation of the Casimir effect I was referring to try, The paper is not too long and they do a fairly good job explaining the idea.

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