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Emission or Absorption of a Photon - Dipole Needed?

  1. Dec 11, 2005 #1
    If photons are emitted or absorbed when a pair or a collection of particles, that are or behave as dipoles, undergo oscillation by some driving force, are there any systems that do NOT use a single or collective dipole oscillation to emit or absorb a photon?
    Last edited: Dec 12, 2005
  2. jcsd
  3. Dec 12, 2005 #2
    no charge moving no photon as it seems to me.
  4. Dec 12, 2005 #3

    Meir Achuz

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    All multipoles (other than monopole), quadrupole, octopole, etc.
    can emit and absorb photons.
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