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Can QED solve all solid state problems?

  1. Apr 7, 2015 #1
    To my understanding, QED is about electromagnetic interaction, and in a solid system, the interaction is only electromagnetic

    So why there are stills lots of research in solid state physics ? Is there something not explained by QED ?
  2. jcsd
  3. Apr 7, 2015 #2


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    Why do people still do brain research if the biochemical processes involved are understood? Why do we do rigid body mechanics if we understand continuum mechanics properly?
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