Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Kraus Matrices and Unitary Matrix

  1. Jun 23, 2013 #1
    I am having trouble getting the kraus matrices(E_k)) from a unitary matrix. This task is trivial if one uses dirac notation. But supposing I was coding, I can't put in bras and kets in my code so I need a systematic way of getting kraus matrices from a unitary matrix(merely using matrices). So supposing, the environment was in the |0> and my unitary matrix was the controlled not gate. I expect my kraus matrices to be to the projection operators |0><0| and |1><1|. The system and the environment are of course 2 dimensional.

    P.S I do know about this definition E_k = <e_k|U|0>. It is not really helpful. |e_k> is a basis for the environment.
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Kraus Matrices and Unitary Matrix
  1. S-matrix unitary? (Replies: 1)

Loading...