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Quantum Computing problem [Quantum Teleportation] (Nelson and Chuang)

  1. Jun 2, 2007 #1
    Hello

    I am reading Nelson and Chuang's book on Quantum Computation. On pages 26-7 they describe quantum teleportation. I am facing essentially a math problem in going from the expression

    [tex]\left|\psi_{2}\right> = \frac{1}{2}\left[\alpha(\left|0\right> + \left|1\right>)(\left|00\right> + \left|11\right>) + \beta(\left|0\right> - \left|1\right>)(\left|10\right> + \left|01\right>)\right][/tex]

    to the expression

    [tex]\left|\psi_{2}\right> = \frac{1}{2}\left[\left|00\right>(\alpha\left|0\right> + \beta\left|1\right>) + \left|01\right>(\alpha\left|1\right> + \beta\left|0\right>) + \left|10\right>(\alpha\left|0\right> - \beta\left|1\right>) + \left|11\right>(\alpha\left|1\right> - \beta\left|0\right>)\right\][/tex]

    Would appreciate any help/suggestions to try to tackle this.

    Thanks.

    PS--It seems to be a regrouping of terms..I guess, but I still can't get it directly :P
     
    Last edited: Jun 2, 2007
  2. jcsd
  3. Jun 2, 2007 #2
    got it...thanks
     
  4. Feb 4, 2011 #3
     
  5. Feb 5, 2011 #4
    Wow, been a long time..3 years. Thanks :-)
     
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