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

No cloning theorm

  1. Oct 16, 2009 #1
    Hi everyone,

    I have couple questions about the no cloning theorm. It states that a quantum state can't be precisely copied.

    1-Can you explain to me in very simple words why this theorm violat the uncertainty principle?

    2-Also when I read the prove of the theorm, I couldn't understand some of the bra-ket manipultations used to prove this theorm like, when a state is copied we can represent that like:-
    G--> |G> |G> two ket product!!
    bra and ket can be maltiplied since in matrices one is a coulumn and the other is a row and moreover I know how to represent them as an integeral. But ket with ket product make no sense for me both as an integral or in matrix representation.
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

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