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

Really basic quantum mechanics question

  1. Apr 24, 2010 #1
    I keep reading about qubits, and they say that if a qubit is represented as [tex]\arrowvert \phi \rangle = \alpha|0\rangle + \beta|1\rangle[/tex] then the probability of it being in the 0 state is [tex]|\alpha^2|[/tex] and similarly for the 1 state.

    My question is how do they get this value? Is it from [tex]|\langle 0 | \phi \rangle|^2[/tex] ?
     
  2. jcsd
  3. Apr 24, 2010 #2

    SpectraCat

    User Avatar
    Science Advisor

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Really basic quantum mechanics question
Loading...