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Casimir Effect - min. distance between plates

  1. Jan 4, 2009 #1
    Casimir force increases when you put 2 plates closer and closer...
    But where is a limit?
    Obviously, Casimir calculations will not be valid when distance becomes less then a size of one atom.
    But I suspect that all these calculations break apart much earlier.
    Your thoughts?
     
  2. jcsd
  3. Jan 4, 2009 #2
    Why you say "Casimir calculations will not be valid when distance becomes less then a size of one atom". Do you mean there wont be Casimir effect less than size of one atom.

    Since casimir effect is based on virtual photons between the plates. I think there will no effect when the distance is <= wavelength of virtual photon.
     
  4. Jan 4, 2009 #3
    But can we talk about the 'plates' in that case?
     
  5. Jan 5, 2009 #4
    I dont understand what you mean.can you elaborate?
     
  6. Jan 5, 2009 #5
    Well, on the atomic level edges of each plate is not 'smooth'
    So it is difficult to say about the distance
    Where a plate 'begins'?
     
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