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Ket Vectors

  1. Nov 5, 2015 #1
    I'm attempting to learn the mathematics of quantum mechanics using textbooks such as "The Principles of Quantum Mechanics" by Dirac. I'm uncertain however of how ket vectors work! Say |A> + |B> = |C>, then what does |C> please represent?
  2. jcsd
  3. Nov 5, 2015 #2


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    Staff: Mentor

    If you are not familiar with the mathematical concept of a "vector space", you'll want to check that out.
  4. Nov 5, 2015 #3


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    Science Advisor

    Dirac is not easy to learn from. Try Ballentine.

    If |A> and |B> denote possible states of a system, then the sum denotes another possible state of that system.
  5. Nov 5, 2015 #4


    Staff: Mentor

    I totally concur.

    I actually learnt it from Dirac and Von Neumann. I wish I didn't. It would be much better to start with Ballentine then read those two seminal texts.

    I get the feeling though your math may not be up to Ballentine. In that case I suggest you work your way up in the following order:

    Then you can tackle Ballentine.

    It may seem like a lot of work but remember its not a race. Take your time and cement your understanding.

  6. Nov 6, 2015 #5
    Thank you all very much for your help
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