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Werner states

  1. Nov 12, 2009 #1
    1. The problem statement, all variables and given/known data

    If I was given a general Werner state: u |001> + v |010> + w |100>, where u, v and w are just arbitrary constants. Now, the question is, what is the state of the first two qubits if the third is measured to be |1>?

    2. Relevant equations

    3. The attempt at a solution

    Do I have to use some sort of properties of product states and entangled states, can someone please help? I don't really know how to approach this problem.
  2. jcsd
  3. Nov 13, 2009 #2

    George Jones

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    What operator represents this measurement?
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