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Multiple quantum particles

  1. Jul 27, 2004 #1
    So why is it that if you have a system with two distinguisable particles why is their state vector written as


    what's this product? Is this product still "in" the original hilbert space?

  2. jcsd
  3. Jul 27, 2004 #2


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    I think the state is in the tensor product of the particle spaces.
  4. Jul 27, 2004 #3
    Huh, is that so, I'll have to play around with that idea and see where it takes me. Thanks SelfAdjoint.

  5. Jul 28, 2004 #4


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    The state |a>|b> is also called a "direct product state", and this basic idea is discussed in most books on linear algebra.
    Reilly Atkinson
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