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Conserved charge

  1. Jan 16, 2009 #1
    If the cooper pair phase of a superconductor is fixed. Is there a phase -. particle number uncertainty like in photonics, and as a corollary is there a charge density uncertainty?
  2. jcsd
  3. Jan 18, 2009 #2
    Indeed. The BCS ground state is not a number operator eigenstate.
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